Your Water Filters Recommendations, Graded on One Standard

September 28, 2026 By Jordan Cooper

The water filter evidence guide

Your water filters.
Checked against the certification databases.

Two weeks ago I asked what water filter you use. 167 of you named one, 65 brands in all. I took every brand named by two or more people, 29 of them, and checked the specific models against the NSF, WQA and IAPMO listings, the published lab reports, and what the box claims. Each is kept separate on every card.

Find your model, see the grade, and open the evidence behind it. Green badges link to the certifier's own listing. Red means a claim was not credited in this review; open the badge to see why.

Hormone Specialist does not sell water filters. No affiliate links. No brand paid me, sent me a unit, or saw this before it went up. Corrections from manufacturers are welcome and will be posted with the date.

Updated 29 September 2026. These are my grades, not an industry standard. They measure documented reduction for the exact model, a materials preference, and yearly replacement cost. They are not safety ratings, and they do not assess bacteria or virus protection. Where a price could not be established, the score shows a range instead of a guess. Revised 29 September: every source link was re-checked against its card. Santevia’s other-metal and Glass/MINA chlorine rows were credited under the lab-evidence rule (Glass/MINA moves to C); the Black Berkey card notes the 18 September appeals-court ruling; wording and links were corrected on the AquaTru, Ecofiltro, Waterdrop G2/A2/K6, GE, Aarke and several other cards. Revised 22 September: the WQA listing link for Clearly Filtered was corrected and the NSF directory record for the pitcher was added. Revised 15 September: the lab-evidence rule was written into the method and applied to every card; Santevia, Ecofiltro, The Water Machine and Multipure entries changed, as noted on those cards.

Certified: listing reviewedCertified: dated certificate copyMaker-commissioned lab testIndependent lab testPartial: under 50% or above limit, no creditClaimed only, or mixed dataNo evidence found

Tap a badge for its exact scope and source. Grey means nothing was found, not zero reduction. Certified and lab-tested badges earn points. A dashed half-filled badge is a reported reduction under 50%, or one that leaves the water above the federal limit; it earns nothing. A red badge is a claim that was not credited, whether untested, mixed, or unresolved, and the badge says which. The checkbox filter matches live certification listings only.

Countertop gravity

Berkey: Phoenix configurations

Travel, Big and Royal Berkey with Phoenix PGF9-2

B 46/1001 certified · 7 lab-tested

Phoenix PGF9-2 has a 1,050-gallon certified chlorine rating. The broader tests below are separate from that certification; PF-2 add-ons are excluded.

Results that matter

Phoenix’s dealer-published laboratory summary attributes results to CVR/RAYNU: named metals >99.5%, five PFAS >99.8%, selected VOCs/drugs >99.9%, and chloramine-containing panel >99%. Most are initial tests; the separate PFOA/PFOS test extends to 396 gallons. These are reported laboratory results, not certified health claims. Source

See grade calculation, costs, materials and sources

Grade calculation: B · 46/100
Evidence: 80 × (1 + 0.6 × 7) ÷ 13 = 32.00. Materials: 6/10. Annual replacement cost: 8/10. Total rounded once. No double counting of laboratory and certified claims.
Replacement cost: $120.00 per year at 1 US gallon/day. $120 per pair, replaced annually for this estimate, following the seller’s annual-replacement guidance. Longer advertised media life is not substituted for each claim’s tested capacity. Price / replacement source
Materials: Stainless-steel chambers; Phoenix has a polymer base, and the standard fittings include plastic. Optional PF-2 is excluded. Design source
System purchase: See linked seller for current system price. Upfront purchase is excluded from the original annual-consumables score.
Minerals: Do not infer mineral retention or removal from a contaminant-count grade. Cartridge type matters; see the named manufacturer configuration.
Reviewed: 12 September 2026. Certification footnotes, model restrictions and replacement instructions apply.

Performance certification listings

NSF 42, Phoenix systems, Travel, Big and Royal Berkey with Phoenix PGF9-2: chlorine, taste and odor; 1,050 gallons.

Countertop gravity

Berkey: Black Berkey configurations

Systems using Black Berkey BB9 elements; identify optional PF-2 separately

C 30–38/1000 certified · 6 lab-testedRegulatory action

Black Berkey has its own laboratory history. Phoenix certification and optional PF-2 performance are excluded.

Letter unchanged across the full displayed input range. Open the calculation below for the exact bounds.

Results that matter

Regulatory action. In May 2023 EPA Region 8 issued a Stop Sale, Use, or Removal Order (FIFRA-08-2023-0038) to Berkey International, following a similar order to the Pueblo, Colorado seller after a November 2022 inspection. EPA's position: Black Berkey elements contain silver and are marketed with antimicrobial claims (pathogen removal, silver used to self-sterilize the element), which makes them pesticides under FIFRA; they are not registered and their labels carry no establishment number, so EPA treats them as unregistered, misbranded pesticides and ordered sales of Black Berkey products, including the Travel, Big, Royal, Imperial and Crown systems, to stop. Berkey challenged the order in court; on 18 September 2026 the U.S. Court of Appeals for the First Circuit upheld it, finding EPA had reason to believe the filters were unregistered, misbranded pesticidal products (court record). The order concerns pesticide registration and antimicrobial claims; it does not report a measured contaminant-reduction failure. Read the EPA order (PDF)
Envirotek report 14-260 (2014) names Black Berkey: arsenic 312→<2 µg/L (>99.35%); fluoride 8.1→<0.1 mg/L (>98.76%); chlorine 2.1→<0.1 (>95.2%); chloramine 3.2→<0.1 (>96.87%). It also reports lead and other-metal reductions. Several printed “99.9%” claims exceed what the reporting limits demonstrate. These short laboratory tests do not prove performance through the advertised 6,000 gallons. Source

See grade calculation, costs, materials and sources

Grade calculation: C · 30–38/100
Evidence: 80 × (0 + 0.6 × 6) ÷ 13 = 22.15. Materials: 6/10. Annual replacement cost: 2–10/10. Total rounded once. No double counting of laboratory and certified claims.
Replacement cost: Current annual total not established; full cost-point range shown. A complete current replacement schedule and price set was not established. The score shows the full 2–10 cost-point range; it does not assume free maintenance.
Materials: Stainless-steel chambers with plastic fittings; Black Berkey BB9 elements, without optional PF-2. Design source
System purchase: See linked seller for current system price. Upfront purchase is excluded from the original annual-consumables score.
Minerals: Do not infer mineral retention or removal from a contaminant-count grade. Cartridge type matters; see the named manufacturer configuration.
Reviewed: 12 September 2026. Certification footnotes, model restrictions and replacement instructions apply.

No matching performance certification was established for this configuration. This statement does not assert that every possible directory alias was exhausted.

Countertop RO

AquaTru Classic

AT2020 with the listed replacement elements

A 89/10013 certified · 0 lab-tested

AT2001, AT2003 and AT2004; the membrane must match the current 58 row. Chloramine is certified. Match arsenic species, influent limits and each claim’s rated capacity.

Results that matter

All 13 comparison categories are documented for the named configuration. This includes chloramine. PFAS means PFOA/PFOS; arsenic claims have species and influent restrictions. Open the badges for the relevant certifier record. Source

See grade calculation, costs, materials and sources

Grade calculation: A · 89/100
Evidence: 80 × (13 + 0.6 × 0) ÷ 13 = 80.00. Materials: 3/10. Annual replacement cost: 6/10. Total rounded once. No double counting of laboratory and certified claims.
Replacement cost: $129.83 per year at 1 US gallon/day. Individual cartridges: 2 × $29.95 pre/carbon, $39.95 VOC yearly (the Classic's 600-gallon claim limit is not reached at one gallon a day), plus $59.95 RO amortized over 2 years. Price / replacement source Price / replacement source Price / replacement source
Materials: Plastic reservoirs and/or filter housings form part of this configuration’s water path.
System purchase: See linked seller for current system price. Upfront purchase is excluded from the original annual-consumables score.
Minerals: RO reduces dissolved minerals. Optional remineralization changes the final water and adds replacement cost.
Reviewed: 12 September 2026. Certification footnotes, model restrictions and replacement instructions apply.

Performance certification listings

IAPMO 42, AquaTru, Chlorine, chloramine and Class I particulate claims (taste/odor is listed for the Carafe AT100–AT140 rows only). Classic AT2020: 600 gallons; Carafe AT100–AT140: 300; ATU200: 360.
IAPMO 53, AquaTru, The inspected RO model rows list VOCs and PFOA/PFOS. Do not infer additional claims from the standard’s general description.
IAPMO 58, AquaTru, Exact RO model rows list TDS and specified inorganic/cyst reductions. Arsenic species, concentration limits and replacement membranes matter.
IAPMO 401, AquaTru, Named emerging compounds and microplastics for the listed RO configurations; use the model-specific capacity.

Countertop RO

AquaTru Carafe

AT100–AT140 with the listed replacement elements

A 89/10013 certified · 0 lab-tested

10AT100SF01, 10AT100VF01/VFA01 and 10AT100RF01, as specified in each listing. Chloramine is certified. Match arsenic species, influent limits and each claim’s rated capacity.

Results that matter

All 13 comparison categories are documented for the named configuration. This includes chloramine. PFAS means PFOA/PFOS; arsenic claims have species and influent restrictions. Open the badges for the relevant certifier record. Source

See grade calculation, costs, materials and sources

Grade calculation: A · 89/100
Evidence: 80 × (13 + 0.6 × 0) ÷ 13 = 80.00. Materials: 3/10. Annual replacement cost: 6/10. Total rounded once. No double counting of laboratory and certified claims.
Replacement cost: $144.98 per year at 1 US gallon/day. Individual cartridges: 2 × $29.95 pre/carbon; 365/300 × $39.95 VOC; 365/600 × $59.95 RO. Uses 300-gallon VOC and 600-gallon RO limits; membrane cost is annualized. Price / replacement source Price / replacement source
Materials: Plastic reservoirs and/or filter housings form part of this configuration’s water path.
System purchase: Carafe starts at $375; optional alkaline and connected versions cost more. Upfront purchase is excluded from the original annual-consumables score.
Minerals: RO reduces dissolved minerals. Optional remineralization changes the final water and adds replacement cost.
Reviewed: 12 September 2026. Certification footnotes, model restrictions and replacement instructions apply.

Performance certification listings

IAPMO 42, AquaTru, Chlorine, chloramine and Class I particulate claims (taste/odor is listed for the Carafe AT100–AT140 rows only). Classic AT2020: 600 gallons; Carafe AT100–AT140: 300; ATU200: 360.
IAPMO 53, AquaTru, The inspected RO model rows list VOCs and PFOA/PFOS. Do not infer additional claims from the standard’s general description.
IAPMO 58, AquaTru, Exact RO model rows list TDS and specified inorganic/cyst reductions. Arsenic species, concentration limits and replacement membranes matter.
IAPMO 401, AquaTru, Named emerging compounds and microplastics for the listed RO configurations; use the model-specific capacity.

Under-sink RO

AquaTru Under Sink

ATU200 with the listed replacement elements

A 89/10013 certified · 0 lab-tested

ATU2001, ATU2003, ATU2004 and AT2005, as specified in each listing. Chloramine is certified. Match arsenic species, influent limits and each claim’s rated capacity.

Results that matter

All 13 comparison categories are documented for the named configuration. This includes chloramine. PFAS means PFOA/PFOS; arsenic claims have species and influent restrictions. Open the badges for the relevant certifier record. Source

See grade calculation, costs, materials and sources

Grade calculation: A · 89/100
Evidence: 80 × (13 + 0.6 × 0) ÷ 13 = 80.00. Materials: 3/10. Annual replacement cost: 6/10. Total rounded once. No double counting of laboratory and certified claims.
Replacement cost: $130.38 per year at 1 US gallon/day. Individual cartridges: 2 × $29.95 pre/carbon, 365/360 × $39.95 VOC, plus $59.95 RO amortized over 2 years. Uses the ATU200 360-gallon certified claim limit rather than a sibling’s 600-gallon claim. Price / replacement source Price / replacement source Price / replacement source
Materials: Plastic reservoirs and/or filter housings form part of this configuration’s water path.
System purchase: See linked seller for current system price. Upfront purchase is excluded from the original annual-consumables score.
Minerals: RO reduces dissolved minerals. Optional remineralization changes the final water and adds replacement cost.
Reviewed: 12 September 2026. Certification footnotes, model restrictions and replacement instructions apply.

Performance certification listings

IAPMO 42, AquaTru, Chlorine, chloramine and Class I particulate claims (taste/odor is listed for the Carafe AT100–AT140 rows only). Classic AT2020: 600 gallons; Carafe AT100–AT140: 300; ATU200: 360.
IAPMO 53, AquaTru, The inspected RO model rows list VOCs and PFOA/PFOS. Do not infer additional claims from the standard’s general description.
IAPMO 58, AquaTru, Exact RO model rows list TDS and specified inorganic/cyst reductions. Arsenic species, concentration limits and replacement membranes matter.
IAPMO 401, AquaTru, Named emerging compounds and microplastics for the listed RO configurations; use the model-specific capacity.

Pitcher / dispenser

Clearly Filtered: pitcher

Filtered Water Pitcher with Pitcher Filter

B 50/1001 certified · 10 lab-tested

100-gallon pitcher configuration. Certified chlorine and the broader published laboratory results are counted separately.

Results that matter

Pitcher data (testing November 2025): lead 152→1 µg/L (99.34%); arsenic 50→<1 (>98%); fluoride 2.18→<0.01 mg/L (>99.54%); nitrate 27→<0.01 (>99.96%); PFOA 0.56→0.002 µg/L (99.64%); PFOS 0.505→<0.001 (>99.80%). The same table reports chloramine, selected VOCs/drugs, microplastics and metals. These are laboratory claims, separate from the 100-gallon chlorine certification. Source

See grade calculation, costs, materials and sources

Grade calculation: B · 50/100
Evidence: 80 × (1 + 0.6 × 10) ÷ 13 = 43.08. Materials: 3/10. Annual replacement cost: 4/10. Total rounded once. No double counting of laboratory and certified claims.
Replacement cost: $237.25 per year at 1 US gallon/day. $65 per replacement ÷ 100 gallons × 365 gallons/year. At this usage, capacity is reached before the calendar limit. Price / replacement source
Materials: Plastic reservoirs and/or filter housings form part of this configuration’s water path.
System purchase: Pitcher advertised from $99. Upfront purchase is excluded from the original annual-consumables score.
Minerals: Do not infer mineral retention or removal from a contaminant-count grade. Cartridge type matters; see the named manufacturer configuration.
Reviewed: 12 September 2026. Certification footnotes, model restrictions and replacement instructions apply.

Performance certification listings

WQA 42, Clearly Filtered, Pitcher with Pitcher Filter: 100 gallons. Affinity Under Sink Filter with Under Sink Filter-R: 2,000 gallons. Aesthetic chlorine, taste and odor.
NSF 42, Clearly Filtered, Filtered Water Pitcher with replacement filter: chlorine, taste and odor. The pitcher also appears in the NSF directory; the under-sink filter currently appears only in the WQA listing. Same claim, second certifier record.

Under-sink carbon

Clearly Filtered: under sink

Affinity Filtration – Under Sink Filter with Under Sink Filter-R

C 41/1001 certified · 8 lab-tested

Affinity under-sink configuration; 2,000-gallon chlorine rating. The historical CF-UTSF report below is linked for this product family; pitcher results are excluded.

Results that matter

CF-UTSF report (April 2018, Quality Filter Testing): fluoride 90.7%, arsenic 94.3%, lead 98.9% and chloramine 95.3%; named PFAS, VOCs, drugs and metals also reduced. Report identifies 2,000-gallon capacity. It is an older manufacturer-supplied report; no nitrate, TDS or cyst credit is inferred. Source

See grade calculation, costs, materials and sources

Grade calculation: C · 41/100
Evidence: 80 × (1 + 0.6 × 8) ÷ 13 = 35.69. Materials: 3/10. Annual replacement cost: 2/10. Total rounded once. No double counting of laboratory and certified claims.
Replacement cost: $364.00–$606.67 per year at 1 US gallon/day. Current set $455. The maker offers 9-, 12- or 15-month replacement schedules; the certified capacity is 2,000 gallons. Annualized range $364–$606.67 across those calendar intervals; both ends receive 2 cost points. Price / replacement source
Materials: Plastic reservoirs and/or filter housings form part of this configuration’s water path.
System purchase: See linked seller for current system price. Upfront purchase is excluded from the original annual-consumables score.
Minerals: Do not infer mineral retention or removal from a contaminant-count grade. Cartridge type matters; see the named manufacturer configuration.
Reviewed: 12 September 2026. Certification footnotes, model restrictions and replacement instructions apply.

Performance certification listings

WQA 42, Clearly Filtered, Pitcher with Pitcher Filter: 100 gallons. Affinity Under Sink Filter with Under Sink Filter-R: 2,000 gallons. Aesthetic chlorine, taste and odor.

Under-sink RO

Waterdrop G2 / A2 / K6

WD-G2 under-sink RO, WD-A2 countertop RO dispenser, WD-K6 under-sink RO with hot water. Exact suffix and cartridge must be matched.

D 5–13/1000 certified · 0 lab-tested5 claims not credited

No current performance listing was verified for any of the three. Lead-content certification (NSF/ANSI 372), where present, is not contaminant reduction. They share the same absence of verified evidence, so they share one card; the advertised claims shown come from the A2 and K6 pages.

Letter unchanged across the full displayed input range. Open the calculation below for the exact bounds.

Results that matter

Waterdrop’s A2 and K6 product pages advertise reduction of lead, PFOA/PFOS, fluoride, chlorine and TDS; the G2 page’s own claims are narrower (TDS, with lead mentioned only as NSF/ANSI 372 low-lead materials). No matching quantitative model-specific report was established, so these remain manufacturer claims and receive no laboratory/certification points. A2 page K6 page G2 page

See grade calculation, costs, materials and sources

Grade calculation: D · 5–13/100
Evidence: 80 × (0 + 0.6 × 0) ÷ 13 = 0.00. Materials: 3/10. Annual replacement cost: 2–10/10. Total rounded once. No double counting of laboratory and certified claims.
Replacement cost: Current annual total not established; full cost-point range shown. A complete current replacement schedule and price set was not established. The score shows the full 2–10 cost-point range; it does not assume free maintenance.
Materials: Plastic reservoirs and/or filter housings form part of this configuration’s water path.
System purchase: See linked seller for current system price. Upfront purchase is excluded from the original annual-consumables score.
Minerals: RO reduces dissolved minerals. Optional remineralization changes the final water and adds replacement cost.
Reviewed: 12 September 2026. Certification footnotes, model restrictions and replacement instructions apply.

No matching performance certification was established for this configuration. This statement does not assert that every possible directory alias was exhausted.

Under-sink RO

Waterdrop G3P600

G3P600 with listed RO and WD-G3-CB components

B 50/1006 certified · 1 lab-tested

Six categories have verified listing support. PFAS scope is PFOA/PFOS; metals scope includes cadmium, barium and radium. X16 and older WD-G3-W have separate scope.

Results that matter

G3P600’s published specification sheet reports laboratory VOC reductions, including chloroform 98.2% and benzene >99%. This supports laboratory VOC credit; it is not a VOC certification and does not establish G3P800 or X16 laboratory scope. Source

See grade calculation, costs, materials and sources

Grade calculation: B · 50/100
Evidence: 80 × (6 + 0.6 × 1) ÷ 13 = 40.62. Materials: 3/10. Annual replacement cost: 6/10. Total rounded once. No double counting of laboratory and certified claims.
Replacement cost: $144.97 per year at 1 US gallon/day. CF $29.99 every 6 months + CB $29.99 yearly + RO $109.99 every 2 years. At 1 gallon/day, calendar limits precede the 550/1,100/2,200-gallon replacement limits. Optional remineralization is excluded. Price / replacement source
Materials: Plastic reservoirs and/or filter housings form part of this configuration’s water path.
System purchase: $439 advertised sale price; $539 reference list price. Upfront purchase is excluded from the original annual-consumables score.
Minerals: RO reduces dissolved minerals. Optional remineralization changes the final water and adds replacement cost.
Reviewed: 12 September 2026. Certification footnotes, model restrictions and replacement instructions apply.

Performance certification listings

IAPMO 58, Waterdrop, G3P600/P800: TDS, fluoride, lead, cadmium, barium and radium. Inspected X16 rows: TDS only. Older WD-G3-W has a different scope.
IAPMO 42, Waterdrop, Listed G3P600/P800 and X16 configurations: chlorine, taste and odor. Match the replacement component, flow and capacity in the model row.
IAPMO 53, Waterdrop, G3P600/P800 with WD-G3-CB: PFOA/PFOS, 1,100 gallons at 0.5 gpm. The generic VOC introduction is not a listed VOC claim for these models.

Under-sink RO

Waterdrop G3P800

G3P800 with listed RO and WD-G3-CB components

B 53/1006 certified · 2 lab-tested

Six categories have verified listing support. PFAS scope is PFOA/PFOS; metals scope includes cadmium, barium and radium. X16 and older WD-G3-W have separate scope.

Results that matter

The live records support the green categories only: G3P800 has six; X16 has chlorine and TDS. Claims or lab results from a different model have not been transferred. Source
Water Filter Guru identifies the tested unit as G3 P800. Without remineralization, nitrate fell from 3.3 to 0.8 mg/L as N (75.8%), and three detected THM/VOC compounds became non-detect. TDS fell 776→35 mg/L (95.5%). The optional remineralization experiment produced different results, including detectable nitrite; it is not the base configuration scored here. Source

See grade calculation, costs, materials and sources

Grade calculation: B · 53/100
Evidence: 80 × (6 + 0.6 × 2) ÷ 13 = 44.31. Materials: 3/10. Annual replacement cost: 6/10. Total rounded once. No double counting of laboratory and certified claims.
Replacement cost: $159.97 per year at 1 US gallon/day. CF $29.99 every 6 months + CB $29.99 yearly + G3P800 RO $139.99 every 2 years. At 365 gallons/year the calendar limits control; optional remineralization excluded. Price / replacement source
Materials: Plastic reservoirs and/or filter housings form part of this configuration’s water path.
System purchase: See linked seller for current system price. Upfront purchase is excluded from the original annual-consumables score.
Minerals: RO reduces dissolved minerals. Optional remineralization changes the final water and adds replacement cost.
Reviewed: 12 September 2026. Certification footnotes, model restrictions and replacement instructions apply.

Performance certification listings

IAPMO 58, Waterdrop, G3P600/P800: TDS, fluoride, lead, cadmium, barium and radium. Inspected X16 rows: TDS only. Older WD-G3-W has a different scope.
IAPMO 42, Waterdrop, Listed G3P600/P800 and X16 configurations: chlorine, taste and odor. Match the replacement component, flow and capacity in the model row.
IAPMO 53, Waterdrop, G3P600/P800 with WD-G3-CB: PFOA/PFOS, 1,100 gallons at 0.5 gpm. The generic VOC introduction is not a listed VOC claim for these models.

Under-sink RO

Waterdrop X16

X16, match the exact suffix and replacement elements in the listing

D 21/1002 certified · 0 lab-tested

Inspected 58 rows list TDS only. Chlorine/taste/odor is listed under 42. G3P600/P800 lead and PFOA/PFOS claims do not transfer.

Results that matter

The live records support the green categories only: G3P800 has six; X16 has chlorine and TDS. Claims or lab results from a different model have not been transferred. Source

See grade calculation, costs, materials and sources

Grade calculation: D · 21/100
Evidence: 80 × (2 + 0.6 × 0) ÷ 13 = 12.31. Materials: 3/10. Annual replacement cost: 6/10. Total rounded once. No double counting of laboratory and certified claims.
Replacement cost: $184.97 per year at 1 US gallon/day. F1A $32.99 yearly + F2 $30.99 every 6 months + X16-F3 $179.99 every 2 years. Calendar limits control at one gallon/day. Price / replacement source
Materials: Plastic reservoirs and/or filter housings form part of this configuration’s water path.
System purchase: See linked seller for current system price. Upfront purchase is excluded from the original annual-consumables score.
Minerals: RO reduces dissolved minerals. Optional remineralization changes the final water and adds replacement cost.
Reviewed: 12 September 2026. Certification footnotes, model restrictions and replacement instructions apply.

Performance certification listings

IAPMO 58, Waterdrop, G3P600/P800: TDS, fluoride, lead, cadmium, barium and radium. Inspected X16 rows: TDS only. Older WD-G3-W has a different scope.
IAPMO 42, Waterdrop, Listed G3P600/P800 and X16 configurations: chlorine, taste and odor. Match the replacement component, flow and capacity in the model row.

Ionizer / alkaline

Enagic: LeveLuk K8

LeveLuk K8 with F8

D 11–19/1001 certified · 0 lab-tested

Filtration-only grade for K8/F8. WQA supports chlorine/taste/odor at 1,500 gallons, 1.1 gpm. This is not evidence of a health benefit from alkaline or ionized water.

Letter unchanged across the full displayed input range. Open the calculation below for the exact bounds.

Results that matter

One of 13 categories is supported by the reviewed performance listing: chlorine. The standard number does not imply broad health-contaminant reduction. Source

See grade calculation, costs, materials and sources

Grade calculation: D · 11–19/100
Evidence: 80 × (1 + 0.6 × 0) ÷ 13 = 6.15. Materials: 3/10. Annual replacement cost: 2–10/10. Total rounded once. No double counting of laboratory and certified claims.
Replacement cost: Current annual total not established; full cost-point range shown. A complete current replacement schedule and price set was not established. The score shows the full 2–10 cost-point range; it does not assume free maintenance.
Materials: Plastic reservoirs and/or filter housings form part of this configuration’s water path.
System purchase: See linked seller for current system price. Upfront purchase is excluded from the original annual-consumables score.
Minerals: Do not infer mineral retention or removal from a contaminant-count grade. Cartridge type matters; see the named manufacturer configuration.
Reviewed: 12 September 2026. Certification footnotes, model restrictions and replacement instructions apply.

Performance certification listings

WQA 42, Enagic K8, LeveLuk K8 with F8: aesthetic chlorine, taste and odor; 1,500 gallons at 1.1 gpm.

Countertop gravity

Santevia Gravity: Fluoride Filter

Gravity Water System with Fluoride Filter, ceramic prefilter and mineral stones

D–C 23–31/1000 certified · 5 lab-tested4 claims not credited

Santevia publishes a results table attributed to ALS Environmental and/or its own laboratory, without per-row attribution. Rows with numeric influent/effluent and ≥50% reduction earn maker-commissioned lab credit under the published rule; rows with feeds below the reporting limit or omitted earn none.

The letter depends on an unresolved input, so both are shown. Open the calculation below for the exact bounds.

Results that matter

Santevia’s published table (ALS Environmental and/or Santevia’s own laboratory; rows are not individually attributed): lead 0.15→<0.00005 mg/L (>99.9%); fluoride 2→0.01 (99.5%); chlorine 2→<0.02 (>99%, not >99.9%); chloramine 3→0.03 (99%). Credited under the lab-evidence rule: exact product, numeric influent and effluent, reduction ≥50%. Manufacturer-published, not certified. Source
Nitrate 25.8→16.9 mg/L (34.5%) and nitrite 3.59→2.24 (37.6%) in Santevia’s published table. Below the 50% floor for laboratory credit.
Other metals: cadmium 0.273→<0.000005 mg/L, mercury 0.01→<0.000005, copper 3.1→<0.01 (each >99.9%); credited. PFAS feed values are below the reporting limit and VOC feeds are omitted, so those rows establish nothing. The row labeled arsenic carries chloramine’s CAS number and test method, so it is not credited until corrected.

See grade calculation, costs, materials and sources

Grade calculation: D–C · 23–31/100
Evidence: 80 × (0 + 0.6 × 5) ÷ 13 = 18.46. Materials: 3/10. Annual replacement cost: 2–10/10. Total rounded once. No double counting of laboratory and certified claims.
Replacement cost: Current annual total not established; full cost-point range shown. A complete current replacement schedule and price set was not established. The score shows the full 2–10 cost-point range; it does not assume free maintenance.
Materials: Plastic reservoirs and/or filter housings form part of this configuration’s water path.
System purchase: See linked seller for current system price. Upfront purchase is excluded from the original annual-consumables score.
Minerals: Do not infer mineral retention or removal from a contaminant-count grade. Cartridge type matters; see the named manufacturer configuration.
Reviewed: 29 September 2026 (other-metal and arsenic rows checked against the lab-evidence rule; regraded 15 September; first reviewed 12 September). Certification footnotes, model restrictions and replacement instructions apply.

No matching performance certification was established for this configuration. This statement does not assert that every possible directory alias was exhausted.

Additional product / testing information

Manufacturer results; report scope available

Countertop gravity

Santevia Glass / MINA: Fluoride refill

Glass Water System or MINA pitcher with the fluoride-removal MINA refill

C 27–35/1000 certified · 6 lab-tested1 claim not credited

Letter unchanged across the full displayed input range. Open the calculation below for the exact bounds.

Results that matter

Santevia’s published Glass/MINA table (ALS Environmental and/or Santevia’s own laboratory; rows are not individually attributed): lead 0.14→0.000969 mg/L (99.31%); fluoride 2.13→<0.05 (>97.65%, not >99.9%); chloramine 2.84→0.09 (96.83%); PFOA 0.298→<0.01 µg/L (>96.64%); PFOS 0.73→<0.01 (>98.63%); chlorine 2.05→<0.02 (>99%); cadmium 98.5%, mercury 99.7%, copper 99.7%. Credited under the lab-evidence rule. Manufacturer-published, not certified. Source
VOC influents are omitted from the table, so VOC reduction cannot be established and earns no credit.

See grade calculation, costs, materials and sources

Grade calculation: C · 27–35/100
Evidence: 80 × (0 + 0.6 × 6) ÷ 13 = 22.15. Materials: 3/10. Annual replacement cost: 2–10/10. Total rounded once. No double counting of laboratory and certified claims.
Replacement cost: Current annual total not established; full cost-point range shown. A complete current replacement schedule and price set was not established. The score shows the full 2–10 cost-point range; it does not assume free maintenance.
Materials: Plastic reservoirs and/or filter housings form part of this configuration’s water path.
System purchase: See linked seller for current system price. Upfront purchase is excluded from the original annual-consumables score.
Minerals: Do not infer mineral retention or removal from a contaminant-count grade. Cartridge type matters; see the named manufacturer configuration.
Reviewed: 29 September 2026 (chlorine and other-metal rows credited under the lab-evidence rule; regraded 15 September; first reviewed 12 September). Certification footnotes, model restrictions and replacement instructions apply.

No matching performance certification was established for this configuration. This statement does not assert that every possible directory alias was exhausted.

Additional product / testing information

Manufacturer results; report scope available

Countertop gravity

BOROUX: Legacy / Compact

Legacy BX-L-SYS-3 and Compact BX-L-SYS-COM with listed Foundation elements and color variants

C 44/1001 certified · 7 lab-tested

The 401 system listing supports microplastics. The 42 system claim is nominal particulate Class I; component materials-only rows do not establish chlorine reduction.

Results that matter

IAPMO laboratory report WFT-01-01 (2025): chlorine 2→0.02 mg/L at 6,000 gallons; chloramine 3→0.05 at 4,000; VOC surrogate 300→4.4 µg/L at 200; lead 150→1.7 µg/L at pH 6.5/4,000 gallons and 150→1.6 at pH 8.5/450 gallons. PFAS and selected drugs/metals have separate test capacities. These capacities are not interchangeable; fluoride/arsenic are not credited to the base elements. Source

See grade calculation, costs, materials and sources

Grade calculation: C · 44/100
Evidence: 80 × (1 + 0.6 × 7) ÷ 13 = 32.00. Materials: 6/10. Annual replacement cost: 6/10. Total rounded once. No double counting of laboratory and certified claims.
Replacement cost: $150.00 per year at 1 US gallon/day. $150 per Foundation pair, using one replacement pair annually. This is a stated maintenance scenario, not a claim that every laboratory endpoint was demonstrated for a full year; VOC laboratory capacity is shorter than several other tests. Price / replacement source
Materials: Stainless-steel storage with polymer filter components/fittings. Foundation elements only; fluoride add-on excluded. Design source
System purchase: Legacy polished, two filters: $355; Compact: $320. Upfront purchase is excluded from the original annual-consumables score.
Minerals: Do not infer mineral retention or removal from a contaminant-count grade. Cartridge type matters; see the named manufacturer configuration.
Reviewed: 12 September 2026. Certification footnotes, model restrictions and replacement instructions apply.

Performance certification listings

WQA 401, BOROUX, Microplastics for listed Legacy BX-L-SYS-3 and Compact BX-L-SYS-COM combinations, including the listed color variants.
WQA 42, BOROUX, Listed Legacy/Compact systems: nominal particulate Class I. Foundation component rows: materials safety only. No chlorine reduction claim in these rows.

Pitcher / dispenser

Brita Elite: Pacifica OB41

Pacifica OB41 with Elite OB06; match listing color footnotes

B 54/1007 certified · 0 lab-tested

Six categories verified in current WQA records. VOC credit is for individual compounds, not a broad VOC suite. PFOA/PFOS appears in the manufacturer performance sheet, with current IAPMO status still not established in this review.

Results that matter

7 categories documented in the certification evidence below. Each green badge opens the matching listing and names the narrower claim scope.

See grade calculation, costs, materials and sources

Grade calculation: B · 54/100
Evidence: 80 × (7 + 0.6 × 0) ÷ 13 = 43.08. Materials: 3/10. Annual replacement cost: 8/10. Total rounded once. No double counting of laboratory and certified claims.
Replacement cost: $60.80 per year at 1 US gallon/day. One Elite OB06 costs $19.99 and is rated for 120 gallons or about 6 months. Annualized at 365/120 cartridges; single-filter price, no bulk discount. Price / replacement source
Materials: Plastic reservoirs and/or filter housings form part of this configuration’s water path.
System purchase: See linked seller for current system price. Upfront purchase is excluded from the original annual-consumables score.
Minerals: Do not infer mineral retention or removal from a contaminant-count grade. Cartridge type matters; see the named manufacturer configuration.
Reviewed: 12 September 2026. Certification footnotes, model restrictions and replacement instructions apply.

Performance certification listings

WQA 42, Brita, Pacifica OB41 with Elite OB06: chlorine, taste/odor, nominal particulate Class I; 120 gallons, 2 gallons/day.
WQA 53, Brita, Pacifica OB41 with Elite OB06: lead, cadmium, mercury, asbestos and individual named organic compounds. This is not the broad VOC surrogate suite.
WQA 401, Brita, Pacifica OB41 with Elite OB06: named emerging compounds and microplastics. Other pitchers have different model rows, so this scope must not be transferred.

Dated certification documents (live status not independently confirmed)

Brita performance sheet, model-limited PFAS claim, The manufacturer sheet identifies IAPMO PFOA/PFOS certification for specified pitcher combinations including OB41. Current IAPMO listing status remains to be checked.

Pitcher / dispenser

ZeroWater: legacy 5-stage

Only the host models and ZR-001/ZF-201 replacement elements named in the linked sheet

C 30/1004 certified · 0 lab-tested

The dated manufacturer sheet documents a 15-gallon IAPMO-certified scope. Current live-directory status remains not established in this review. The newer drop-in ZEROFXX cartridge is separate.

Results that matter

The linked certification document covers 4 of the 13 categories at 15 gallons. A zero reading on the supplied TDS meter is not a test for every harmful chemical. Current and legacy certification scopes differ. Source

See grade calculation, costs, materials and sources

Grade calculation: C · 30/100
Evidence: 80 × (4 + 0.6 × 0) ÷ 13 = 24.62. Materials: 3/10. Annual replacement cost: 2/10. Total rounded once. No double counting of laboratory and certified claims.
Replacement cost: $450.05 per year at 1 US gallon/day. $36.99 per two-pack, or $18.495 per cartridge, × 365/15. Uses the 15-gallon claim capacity, not a generic “months” estimate. High input TDS can shorten useful life further. Price / replacement source
Materials: Plastic reservoirs and/or filter housings form part of this configuration’s water path.
System purchase: See linked seller for current system price. Upfront purchase is excluded from the original annual-consumables score.
Minerals: Do not infer mineral retention or removal from a contaminant-count grade. Cartridge type matters; see the named manufacturer configuration.
Reviewed: 12 September 2026. Certification footnotes, model restrictions and replacement instructions apply.

Dated certification documents (live status not independently confirmed)

Legacy ZeroWater performance sheet, The sheet identifies IAPMO 42/53 certification for chlorine, lead, hexavalent chromium, mercury and PFOA/PFOS; 15 gallons. Current directory status remains unverified.

Pitcher / dispenser

Aarke Purifier

Purifier with Pure granules; Enriched refill has a separate price/mineral profile

D 14–18/1000 certified · 0 lab-tested3 claims not credited

A manufacturer reference to EN 17093 is not a product certification listing. Pure and Enriched have different intended mineral/hardness effects.

Letter unchanged across the full displayed input range. Open the calculation below for the exact bounds.

Results that matter

The manufacturer describes chlorine, copper, lead and limescale reduction under EN 17093 testing. A public quantitative report or certifier-issued performance record was not established, so these claims do not earn reduction-evidence points. Enriched granules add magnesium. Source

See grade calculation, costs, materials and sources

Grade calculation: D · 14–18/100
Evidence: 80 × (0 + 0.6 × 0) ÷ 13 = 0.00. Materials: 6–10/10. Annual replacement cost: 8/10. Total rounded once. No double counting of laboratory and certified claims.
Replacement cost: $115.14 per year at 1 US gallon/day. Pure granules: $30 per three bags; each treats 120 L (31.7 US gallons), or 8 weeks. At 365 gallons/year the volume limit controls. Enriched bags are $35/three and would cost about $134/year instead. Price / replacement source
Materials: Glass jug and stainless-steel hopper/cartridge; exact minor wetted fittings were not fully resolved. Materials points are shown as a 6–10 range. Design source
System purchase: Purifier $140; Large $165. Upfront purchase is excluded from the original annual-consumables score.
Minerals: Do not infer mineral retention or removal from a contaminant-count grade. Cartridge type matters; see the named manufacturer configuration.
Reviewed: 12 September 2026. Certification footnotes, model restrictions and replacement instructions apply.

No matching performance certification was established for this configuration. This statement does not assert that every possible directory alias was exhausted.

Additional product / testing information

Manufacturer support; certification not established

Pitcher / dispenser

Culligan ZeroWater: current 5-stage

ZEROP07/08/10/12 and ZEROD22/23/32/33/40 with ZEROFXX

B 48/1007 certified · 0 lab-tested

Certificate copies document seven categories at 20 gallons for these models. Total PFAS is a defined seven-compound panel, not all PFAS. The 40-gallon ZEROD52 row is outside this card. Live-directory status remains not established in this review.

Results that matter

The certification documents below (IAPMO 42, 53 and 401 copies) together cover 7 of the 13 categories at 20 gallons; the linked performance data sheet summarizes all three. A zero reading on the supplied TDS meter is not a test for every harmful chemical. Current and legacy certification scopes differ. Source

See grade calculation, costs, materials and sources

Grade calculation: B · 48/100
Evidence: 80 × (7 + 0.6 × 0) ÷ 13 = 43.08. Materials: 3/10. Annual replacement cost: 2/10. Total rounded once. No double counting of laboratory and certified claims.
Replacement cost: $337.53 per year at 1 US gallon/day. $36.99 per two-pack, or $18.495 per cartridge, × 365/20. Uses the 20-gallon claim capacity, not a generic “months” estimate. High input TDS can shorten useful life further. Price / replacement source
Materials: Plastic reservoirs and/or filter housings form part of this configuration’s water path.
System purchase: See linked seller for current system price. Upfront purchase is excluded from the original annual-consumables score.
Minerals: Do not infer mineral retention or removal from a contaminant-count grade. Cartridge type matters; see the named manufacturer configuration.
Reviewed: 12 September 2026. Certification footnotes, model restrictions and replacement instructions apply.

Dated certification documents (live status not independently confirmed)

IAPMO 42 certificate copy, W-17154, copy dated March 26, 2025: chlorine, taste, odor and zinc; listed ZEROP/ZEROD models with ZEROFXX, 20 gallons. Current live-directory status has not been verified in this review.
IAPMO 53 certificate copy, W-17155, revised June 26, 2026: lead, fluoride, nitrate/nitrite, Total PFAS and named metals. Listed 20-gallon models are distinct from the 40-gallon ZEROD52 row. Current live-directory status has not been verified in this review.
IAPMO 401 certificate copy, W-17156, copy dated March 26, 2025: named emerging compounds; microplastics is not included in the displayed model claims. Current live-directory status has not been verified in this review.
IAPMO 372 certificate copy, W-17157: lead content of materials, not lead reduction from water. Current live-directory status has not been verified in this review.
IAPMO CSA B483.1 certificate copy, W-17175: Canadian drinking-water treatment system listing. Read the exact configuration and conditions. Current live-directory status has not been verified in this review.

Additional product / testing information

Manufacturer performance data sheet

Pitcher / dispenser

LifeStraw Home: Glass 7-Cup

Home Glass 7-Cup with activated-carbon/ion-exchange filter and membrane microfilter

B 49/1006 certified · 0 lab-tested

40-gallon listed capacity. Cysts and microplastics are certified; PFAS is not supported by these rows. Other Home pitchers and dispensers need separate model verification.

Results that matter

The manufacturer advertises PFAS reduction. PFAS is not in the reviewed Home Glass 7-Cup WQA model rows, so it receives no certification credit on this card. Source

See grade calculation, costs, materials and sources

Grade calculation: B · 49/100
Evidence: 80 × (6 + 0.6 × 0) ÷ 13 = 36.92. Materials: 6/10. Annual replacement cost: 6/10. Total rounded once. No double counting of laboratory and certified claims.
Replacement cost: $189.16 per year at 1 US gallon/day. Single carbon/ion-exchange filter $16.95 at 40 gallons; membrane $24.95 at 264 gallons or 1 year. Annual cost = 365/40 × $16.95 + 365/264 × $24.95. Multipacks can cost less. Price / replacement source
Materials: Glass lower jug with polymer upper/filter components; glass storage alone does not make the full path plastic-free. Design source
System purchase: See linked seller for current system price. Upfront purchase is excluded from the original annual-consumables score.
Minerals: Do not infer mineral retention or removal from a contaminant-count grade. Cartridge type matters; see the named manufacturer configuration.
Reviewed: 12 September 2026. Certification footnotes, model restrictions and replacement instructions apply.

Performance certification listings

WQA 42, LifeStraw, Home Glass 7-Cup: chlorine, taste/odor, nominal particulate Class I. Listed with the activated-carbon/ion-exchange filter and membrane microfilter; 40 gallons, 2 gallons/day.
WQA 53, LifeStraw, Home Glass 7-Cup: lead, cadmium, copper, mercury, cyst and turbidity. PFAS is not in this model row. Listed with the activated-carbon/ion-exchange filter and membrane microfilter; 40 gallons, 2 gallons/day.
WQA 401, LifeStraw, Home Glass 7-Cup: microplastics and named emerging compounds. Listed with the activated-carbon/ion-exchange filter and membrane microfilter; 40 gallons, 2 gallons/day.

Under-sink RO

iSpring: base RCC7 models

RCC7, RCC7AK, RCC7AK-UV

D 11–19/1001 certified · 0 lab-tested

The inspected base-model rows list TDS only. Do not import claims from suffix models or a manual.

Letter unchanged across the full displayed input range. Open the calculation below for the exact bounds.

Results that matter

The independent review tested an RCC7-AK (alkaline remineralization configuration). It measured nitrate 1.4→0.2 mg/L as N (85.7%) and fluoride reduction, with arsenic newly detected at 0.00333 mg/L after filtration. The NSF listing has both TDS-only and full-claim RCC7AK rows, so this result is shown without transferring score credit. Source

See grade calculation, costs, materials and sources

Grade calculation: D · 11–19/100
Evidence: 80 × (1 + 0.6 × 0) ÷ 13 = 6.15. Materials: 3/10. Annual replacement cost: 2–10/10. Total rounded once. No double counting of laboratory and certified claims.
Replacement cost: Current annual total not established; full cost-point range shown. A complete current replacement schedule and price set was not established. The score shows the full 2–10 cost-point range; it does not assume free maintenance.
Materials: Plastic reservoirs and/or filter housings form part of this configuration’s water path.
System purchase: See linked seller for current system price. Upfront purchase is excluded from the original annual-consumables score.
Minerals: RO reduces dissolved minerals. Optional remineralization changes the final water and adds replacement cost.
Reviewed: 12 September 2026. Certification footnotes, model restrictions and replacement instructions apply.

Performance certification listings

NSF 58, iSpring, RCC7/RCC7AK/RCC7AK-UV rows: TDS only. Specified suffix models and RCC7UV: lead, fluoride, TDS and named metals among other claims. No arsenic in the inspected listing.

Under-sink RO

iSpring: expanded listing models

RCC7-BLK, RCC7-BN, RCC7AK-BLK, RCC7AK-BN, RCC7AK-UVBLK, RCC7AK-UVBN and RCC7UV

C 30–38/1004 certified · 0 lab-tested

The named rows include lead, fluoride, TDS and specified metals, including trivalent chromium. Arsenic is not listed.

Letter unchanged across the full displayed input range. Open the calculation below for the exact bounds.

Results that matter

The independent review tested an RCC7-AK (alkaline remineralization configuration). It measured nitrate 1.4→0.2 mg/L as N (85.7%) and fluoride reduction, with arsenic newly detected at 0.00333 mg/L after filtration. The NSF listing has both TDS-only and full-claim RCC7AK rows, so this result is shown without transferring score credit. Source

See grade calculation, costs, materials and sources

Grade calculation: C · 30–38/100
Evidence: 80 × (4 + 0.6 × 0) ÷ 13 = 24.62. Materials: 3/10. Annual replacement cost: 2–10/10. Total rounded once. No double counting of laboratory and certified claims.
Replacement cost: Current annual total not established; full cost-point range shown. A complete current replacement schedule and price set was not established. The score shows the full 2–10 cost-point range; it does not assume free maintenance.
Materials: Plastic reservoirs and/or filter housings form part of this configuration’s water path.
System purchase: See linked seller for current system price. Upfront purchase is excluded from the original annual-consumables score.
Minerals: RO reduces dissolved minerals. Optional remineralization changes the final water and adds replacement cost.
Reviewed: 12 September 2026. Certification footnotes, model restrictions and replacement instructions apply.

Performance certification listings

NSF 58, iSpring, RCC7/RCC7AK/RCC7AK-UV rows: TDS only. Specified suffix models and RCC7UV: lead, fluoride, TDS and named metals among other claims. No arsenic in the inspected listing.

Clay / ceramic

Ecofiltro

Ecofiltro ceramic/clay filtering unit; laboratory samples supplied by Ecofiltro Europe

D–C 23–38/1000 certified · 5 lab-testedLab tested, not certified

Laboratory results vary by substance and report. Fluoride is shown as partial (14–26%) and earns no credit; the PFAS experiment includes an adverse result and does not support an across-the-board PFAS removal claim.

The letter depends on an unresolved input, so both are shown. Open the calculation below for the exact bounds.

Results that matter

Measurlabs ID 15010 (February 2025): three units, each challenged with 1,000 polystyrene particles of 70 µm in one liter after conditioning; no challenged polystyrene was detected downstream. Other trace particles were found. This is not proof of removal of every plastic or of submicron particles across cartridge life. Source
Measurlabs ID 15544 (December 2024): reductions for selected drug analytes in three sample filters. Many influents were about 0.043–0.057 µg/L with effluents <0.010; those limits establish roughly >77–82%, not “99.9%.” Source
Mixed PFAS result, no credit: PFOA feed 0.0129 µg/L became 0.0269 / 0.0006 / 0.0014 across three filters; PFOS feed 0.0120 became 0.1576 / 0.0021 / 0.0009. The first sample was higher than the feed. The other two reduced these compounds. Source
Ecofiltro’s May 2023 clay-filter report (commissioned by Ecofiltro S.A., Guatemala) shows differences between two day-5 sample results: arsenic 0.093→0.034/0.016 mg/L (63%/83%); fluoride 4.2→3.1/3.6 (26%/14%); lead 0.018→<0.005 (>72%); cadmium/mercury below limits. Total chromium rose from 0.023 to 0.031/0.025 mg/L. Low fluoride reduction and the chromium increases remain visible; “100%” is not justified by non-detect results. Source

See grade calculation, costs, materials and sources

Grade calculation: D–C · 23–38/100
Evidence: 80 × (0 + 0.6 × 5) ÷ 13 = 18.46. Materials: 3–10/10. Annual replacement cost: 2–10/10. Total rounded once. No double counting of laboratory and certified claims.
Replacement cost: Current annual total not established; full cost-point range shown. A complete current replacement schedule and price set was not established. The score shows the full 2–10 cost-point range; it does not assume free maintenance.
Materials: Ceramic filtering unit; outer vessels and taps vary. Materials points span 3–10 until the reader’s vessel/fittings are specified. Design source
System purchase: See linked seller for current system price. Upfront purchase is excluded from the original annual-consumables score.
Minerals: Do not infer mineral retention or removal from a contaminant-count grade. Cartridge type matters; see the named manufacturer configuration.
Reviewed: 15 September 2026 (fluoride credit withdrawn under the published lab-evidence rule; first reviewed 12 September). Certification footnotes, model restrictions and replacement instructions apply.

No matching performance certification was established for this configuration. This statement does not assert that every possible directory alias was exhausted.

Additional product / testing information

Manufacturer report library; not a certification listing

Pitcher / dispenser

LARQ PureVis: Advanced

Pitcher PureVis with Advanced PAFR190A

C 31/1000 certified · 6 lab-testedLab tested, not certified

Published LARQ report distinguishes Advanced PAFR190A and Essential PEFR190A. These are laboratory-tested claims, not NSF product certifications.

Results that matter

2025 report: Advanced chlorine 98.6%, PFOS 99.1%, benzene 95.3%; it also documents lead, selected drugs, cadmium/mercury/copper reductions. Initial-life summary values are not a guarantee for every sample or an NSF performance listing. Source

See grade calculation, costs, materials and sources

Grade calculation: C · 31/100
Evidence: 80 × (0 + 0.6 × 6) ÷ 13 = 22.15. Materials: 3/10. Annual replacement cost: 6/10. Total rounded once. No double counting of laboratory and certified claims.
Replacement cost: $197.71 per year at 1 US gallon/day. Advanced single replacement $32.50, 60 gallons or 2 months. At 1 gallon/day, 365/60 × $32.50; excludes subscription discounts. Price / replacement source
Materials: Plastic reservoirs and/or filter housings form part of this configuration’s water path.
System purchase: See linked seller for current system price. Upfront purchase is excluded from the original annual-consumables score.
Minerals: Do not infer mineral retention or removal from a contaminant-count grade. Cartridge type matters; see the named manufacturer configuration.
Reviewed: 12 September 2026. Certification footnotes, model restrictions and replacement instructions apply.

No matching performance certification was established for this configuration. This statement does not assert that every possible directory alias was exhausted.

Additional product / testing information

Manufacturer support and report links

Pitcher / dispenser

LARQ PureVis: Essential

Pitcher PureVis with Essential PEFR190A

D 16–24/1000 certified · 3 lab-testedLab tested, not certified

Published LARQ report distinguishes Advanced PAFR190A and Essential PEFR190A. These are laboratory-tested claims, not NSF product certifications.

Letter unchanged across the full displayed input range. Open the calculation below for the exact bounds.

Results that matter

2025 report: Essential chlorine 99.5% and named metal/VOC reductions. Advanced lead, PFAS and drug claims are not transferred to Essential. Source

See grade calculation, costs, materials and sources

Grade calculation: D · 16–24/100
Evidence: 80 × (0 + 0.6 × 3) ÷ 13 = 11.08. Materials: 3/10. Annual replacement cost: 2–10/10. Total rounded once. No double counting of laboratory and certified claims.
Replacement cost: Current annual total not established; full cost-point range shown. Current Essential refill pricing was not established; the full cost-point range is shown.
Materials: Plastic reservoirs and/or filter housings form part of this configuration’s water path.
System purchase: See linked seller for current system price. Upfront purchase is excluded from the original annual-consumables score.
Minerals: Do not infer mineral retention or removal from a contaminant-count grade. Cartridge type matters; see the named manufacturer configuration.
Reviewed: 12 September 2026. Certification footnotes, model restrictions and replacement instructions apply.

No matching performance certification was established for this configuration. This statement does not assert that every possible directory alias was exhausted.

Additional product / testing information

Manufacturer support and report links

Under-sink RO

APEC: Essence

Reference for pricing: ROES-50. Certification scope also lists ROES-100/ROES-PH75; their consumables differ.

D 11–19/1001 certified · 0 lab-tested

The inspected rows list TDS only. Ultimate-model claims do not transfer.

Letter unchanged across the full displayed input range. Open the calculation below for the exact bounds.

Results that matter

1 category documented in the certification evidence below. Each green badge opens the matching listing and names the narrower claim scope.

See grade calculation, costs, materials and sources

Grade calculation: D · 11–19/100
Evidence: 80 × (1 + 0.6 × 0) ÷ 13 = 6.15. Materials: 3/10. Annual replacement cost: 2–10/10. Total rounded once. No double counting of laboratory and certified claims.
Replacement cost: Current annual total not established; full cost-point range shown. The current parts catalog did not support a complete, consistent price-and-replacement schedule for this reference model. No earlier estimate is reused; the full 2–10 cost-point range is displayed.
Materials: Plastic reservoirs and/or filter housings form part of this configuration’s water path.
System purchase: See linked seller for current system price. Upfront purchase is excluded from the original annual-consumables score.
Minerals: RO reduces dissolved minerals. Optional remineralization changes the final water and adds replacement cost.
Reviewed: 12 September 2026. Certification footnotes, model restrictions and replacement instructions apply.

Performance certification listings

WQA 58, APEC, RO-90/RO-Hi/RO-PH90: lead, arsenic V, fluoride, TDS and named metals among other claims. ROES-50/ROES-100/ROES-PH75 rows: TDS only.

Under-sink RO

APEC: Ultimate

Reference for pricing: RO-90. RO-Hi/RO-PH90 have the listed performance scope but different accessories/costs.

C 36–44/1005 certified · 0 lab-tested

Arsenic credit is specifically arsenic V; the listing identifies a 300-ppb influent claim. Read the full conditions and exact replacement components.

Letter unchanged across the full displayed input range. Open the calculation below for the exact bounds.

Results that matter

5 categories documented in the certification evidence below. Each green badge opens the matching listing and names the narrower claim scope.

See grade calculation, costs, materials and sources

Grade calculation: C · 36–44/100
Evidence: 80 × (5 + 0.6 × 0) ÷ 13 = 30.77. Materials: 3/10. Annual replacement cost: 2–10/10. Total rounded once. No double counting of laboratory and certified claims.
Replacement cost: Current annual total not established; full cost-point range shown. The current parts catalog did not support a complete, consistent price-and-replacement schedule for this reference model. No earlier estimate is reused; the full 2–10 cost-point range is displayed.
Materials: Plastic reservoirs and/or filter housings form part of this configuration’s water path.
System purchase: RO-90 $264.99; other Ultimate models priced separately. Upfront purchase is excluded from the original annual-consumables score.
Minerals: RO reduces dissolved minerals. Optional remineralization changes the final water and adds replacement cost.
Reviewed: 12 September 2026. Certification footnotes, model restrictions and replacement instructions apply.

Performance certification listings

WQA 58, APEC, RO-90/RO-Hi/RO-PH90: lead, arsenic V, fluoride, TDS and named metals among other claims. ROES-50/ROES-100/ROES-PH75 rows: TDS only.

Countertop gravity

AquaCera Terra2: CeraMetix GF

Terra2 with two 7-inch CeraMetix GF W9512624 elements

B 47/1000 certified · 9 lab-testedLab tested, not certified

NSF component listing is materials-only. AquaCera links the 2016 CeraMetix family laboratory report from its GF product page; the report itself does not specify the GF suffix.

Results that matter

Envirotek 16-112 (2016), manufacturer-applied CeraMetix family report: lead 98.7%; arsenic 95.2% (302→14.6 µg/L; the effluent remains above the 10 µg/L federal limit, though the challenge was six times the NSF influent level); fluoride 97.5%; nitrate 92.4%; chlorine 95.2%; chloramine 90.3%; selected VOCs/drugs/metals also reduced. PFAS and microplastics are not in this report. Family applicability is supplied by AquaCera, not an exact GF model identification by the laboratory. Source

See grade calculation, costs, materials and sources

Grade calculation: B · 47/100
Evidence: 80 × (0 + 0.6 × 9) ÷ 13 = 33.23. Materials: 6/10. Annual replacement cost: 8/10. Total rounded once. No double counting of laboratory and certified claims.
Replacement cost: $78.00 per year at 1 US gallon/day. Two 7-inch GF elements × $39 each, replaced annually. Rated volume per element exceeds the 365-gallon annual scenario. Price / replacement source
Materials: Stoneware vessel, ceramic elements and a stainless-steel spigot; element fittings are not specified by the maker. Design source
System purchase: Terra2 with two 7-inch CeraMetix GF elements: $279. Upfront purchase is excluded from the original annual-consumables score.
Minerals: Do not infer mineral retention or removal from a contaminant-count grade. Cartridge type matters; see the named manufacturer configuration.
Reviewed: 12 September 2026. Certification footnotes, model restrictions and replacement instructions apply.

Materials-only certification listings

NSF 42, AquaCera components, Materials-safety certification of named components only; the 7-inch GF element W9512624 is not among the listed part numbers. No finished-system contaminant-reduction credit.

No matching performance certification was established for this configuration. This statement does not assert that every possible directory alias was exhausted.

Pitcher / dispenser

Crystal Quest

Large Capacity Ultimate Pitcher with Standard SMART cartridge

D 5–13/1000 certified · 0 lab-tested5 claims not credited

No current finished-pitcher performance certification has been verified in this review. A certified medium or component does not certify the finished pitcher.

Letter unchanged across the full displayed input range. Open the calculation below for the exact bounds.

Results that matter

SMART pitcher marketing describes chlorine, metals and chemical reduction. No matching finished-pitcher certifier record or auditable quantitative laboratory report was established. Fluoride, arsenic, demineralizing and alkalizing cartridges are separate options; their names do not establish performance certification. Source

See grade calculation, costs, materials and sources

Grade calculation: D · 5–13/100
Evidence: 80 × (0 + 0.6 × 0) ÷ 13 = 0.00. Materials: 3/10. Annual replacement cost: 2–10/10. Total rounded once. No double counting of laboratory and certified claims.
Replacement cost: Current annual total not established; full cost-point range shown. A complete current replacement schedule and price set was not established. The score shows the full 2–10 cost-point range; it does not assume free maintenance.
Materials: Plastic reservoirs and/or filter housings form part of this configuration’s water path.
System purchase: Standard SMART pitcher $39.95; alternative cartridge variants $42.95. Upfront purchase is excluded from the original annual-consumables score.
Minerals: Do not infer mineral retention or removal from a contaminant-count grade. Cartridge type matters; see the named manufacturer configuration.
Reviewed: 12 September 2026. Certification footnotes, model restrictions and replacement instructions apply.

No matching performance certification was established for this configuration. This statement does not assert that every possible directory alias was exhausted.

Under-sink RO

Culligan Aquasential: RO / Smart RO Nitrate, 1-year

Aquasential RO with RO50 or Smart RO Nitrate with RO75, plus TD 1 or TD/Min 1

A 85–93/10013 certified · 0 lab-tested

Counts require this exact listed membrane and postfilter combination. Other Post/Post Adv configurations do not inherit TD claims. Arsenic is V at the listed 50-ppb influent condition; PFAS is the listing’s Total PFAS claim.

Letter unchanged across the full displayed input range. Open the calculation below for the exact bounds.

Results that matter

13 of 13 categories have matching live-listing support for this precise cartridge configuration. One-year/2-year TD cartridges and nitrate/non-nitrate membranes have different claim sets. Source

See grade calculation, costs, materials and sources

Grade calculation: A · 85–93/100
Evidence: 80 × (13 + 0.6 × 0) ÷ 13 = 80.00. Materials: 3/10. Annual replacement cost: 2–10/10. Total rounded once. No double counting of laboratory and certified claims.
Replacement cost: Current annual total not established; full cost-point range shown. Dealer-priced system and service. No national replacement total is assumed. The displayed score spans every original cost band (2–10 points); where both endpoints give A, the letter is A even without a local quote.
Materials: Plastic reservoirs and/or filter housings form part of this configuration’s water path.
System purchase: See linked seller for current system price. Upfront purchase is excluded from the original annual-consumables score.
Minerals: RO reduces dissolved minerals. Optional remineralization changes the final water and adds replacement cost.
Reviewed: 12 September 2026. Certification footnotes, model restrictions and replacement instructions apply.

Performance certification listings

WQA 42, Culligan, Aquasential RO/Smart RO/Smart RO Nitrate with TD 1 or TD/Min 1: chlorine and chloramine. The corresponding 2-year TD 2/TD-Min 2 rows list chlorine, without chloramine.
WQA 53, Culligan, Specified Aquasential TD/TD-Min configurations: Total PFAS, lead, mercury, cyst, VOC, MTBE and turbidity. Separate AS3 cartridge rows have arsenic claims.
WQA 58, Culligan, RO with RO50 and Smart RO Nitrate with RO75 include nitrate/nitrite. Smart RO with RO75 does not list nitrate/nitrite. All these named tanked RO rows include arsenic V (50 ppb influent), fluoride, TDS, lead, cyst and named metals.
WQA 401, Culligan, Named Aquasential TD/TD-Min configurations: microplastics and selected emerging compounds. Do not transfer these claims to legacy or tankless products.

Under-sink RO

Culligan Aquasential: Smart RO, 1-year

Smart RO with RO75 and TD 1 or TD/Min 1

A 79–87/10012 certified · 0 lab-tested

Letter unchanged across the full displayed input range. Open the calculation below for the exact bounds.

Results that matter

12 of 13 categories have matching live-listing support for this precise cartridge configuration. One-year/2-year TD cartridges and nitrate/non-nitrate membranes have different claim sets. Source

See grade calculation, costs, materials and sources

Grade calculation: A · 79–87/100
Evidence: 80 × (12 + 0.6 × 0) ÷ 13 = 73.85. Materials: 3/10. Annual replacement cost: 2–10/10. Total rounded once. No double counting of laboratory and certified claims.
Replacement cost: Current annual total not established; full cost-point range shown. Dealer-priced system and service. No national replacement total is assumed. The displayed score spans every original cost band (2–10 points); where both endpoints give A, the letter is A even without a local quote.
Materials: Plastic reservoirs and/or filter housings form part of this configuration’s water path.
System purchase: See linked seller for current system price. Upfront purchase is excluded from the original annual-consumables score.
Minerals: RO reduces dissolved minerals. Optional remineralization changes the final water and adds replacement cost.
Reviewed: 12 September 2026. Certification footnotes, model restrictions and replacement instructions apply.

Performance certification listings

WQA 42, Culligan, Aquasential RO/Smart RO/Smart RO Nitrate with TD 1 or TD/Min 1: chlorine and chloramine. The corresponding 2-year TD 2/TD-Min 2 rows list chlorine, without chloramine.
WQA 53, Culligan, Specified Aquasential TD/TD-Min configurations: Total PFAS, lead, mercury, cyst, VOC, MTBE and turbidity. Separate AS3 cartridge rows have arsenic claims.
WQA 58, Culligan, RO with RO50 and Smart RO Nitrate with RO75 include nitrate/nitrite. Smart RO with RO75 does not list nitrate/nitrite. All these named tanked RO rows include arsenic V (50 ppb influent), fluoride, TDS, lead, cyst and named metals.
WQA 401, Culligan, Named Aquasential TD/TD-Min configurations: microplastics and selected emerging compounds. Do not transfer these claims to legacy or tankless products.

Under-sink RO

Culligan Aquasential: RO / Smart RO Nitrate, 2-year

RO (2 yr) with RO50 or Smart RO (2 yr) Nitrate with RO75, plus TD 2 or TD/Min 2

A 79–87/10012 certified · 0 lab-tested

Letter unchanged across the full displayed input range. Open the calculation below for the exact bounds.

Results that matter

12 of 13 categories have matching live-listing support for this precise cartridge configuration. One-year/2-year TD cartridges and nitrate/non-nitrate membranes have different claim sets. Source

See grade calculation, costs, materials and sources

Grade calculation: A · 79–87/100
Evidence: 80 × (12 + 0.6 × 0) ÷ 13 = 73.85. Materials: 3/10. Annual replacement cost: 2–10/10. Total rounded once. No double counting of laboratory and certified claims.
Replacement cost: Current annual total not established; full cost-point range shown. Dealer-priced system and service. No national replacement total is assumed. The displayed score spans every original cost band (2–10 points); where both endpoints give A, the letter is A even without a local quote.
Materials: Plastic reservoirs and/or filter housings form part of this configuration’s water path.
System purchase: See linked seller for current system price. Upfront purchase is excluded from the original annual-consumables score.
Minerals: RO reduces dissolved minerals. Optional remineralization changes the final water and adds replacement cost.
Reviewed: 12 September 2026. Certification footnotes, model restrictions and replacement instructions apply.

Performance certification listings

WQA 42, Culligan, Aquasential RO/Smart RO/Smart RO Nitrate with TD 1 or TD/Min 1: chlorine and chloramine. The corresponding 2-year TD 2/TD-Min 2 rows list chlorine, without chloramine.
WQA 53, Culligan, Specified Aquasential TD/TD-Min configurations: Total PFAS, lead, mercury, cyst, VOC, MTBE and turbidity. Separate AS3 cartridge rows have arsenic claims.
WQA 58, Culligan, RO with RO50 and Smart RO Nitrate with RO75 include nitrate/nitrite. Smart RO with RO75 does not list nitrate/nitrite. All these named tanked RO rows include arsenic V (50 ppb influent), fluoride, TDS, lead, cyst and named metals.
WQA 401, Culligan, Named Aquasential TD/TD-Min configurations: microplastics and selected emerging compounds. Do not transfer these claims to legacy or tankless products.

Under-sink RO

Culligan Aquasential: Smart RO, 2-year

Smart RO (2 yr) with RO75 and TD 2 or TD/Min 2

A 73–81/10011 certified · 0 lab-tested

Letter unchanged across the full displayed input range. Open the calculation below for the exact bounds.

Results that matter

11 of 13 categories have matching live-listing support for this precise cartridge configuration. One-year/2-year TD cartridges and nitrate/non-nitrate membranes have different claim sets. Source

See grade calculation, costs, materials and sources

Grade calculation: A · 73–81/100
Evidence: 80 × (11 + 0.6 × 0) ÷ 13 = 67.69. Materials: 3/10. Annual replacement cost: 2–10/10. Total rounded once. No double counting of laboratory and certified claims.
Replacement cost: Current annual total not established; full cost-point range shown. Dealer-priced system and service. No national replacement total is assumed. The displayed score spans every original cost band (2–10 points); where both endpoints give A, the letter is A even without a local quote.
Materials: Plastic reservoirs and/or filter housings form part of this configuration’s water path.
System purchase: See linked seller for current system price. Upfront purchase is excluded from the original annual-consumables score.
Minerals: RO reduces dissolved minerals. Optional remineralization changes the final water and adds replacement cost.
Reviewed: 12 September 2026. Certification footnotes, model restrictions and replacement instructions apply.

Performance certification listings

WQA 42, Culligan, Aquasential RO/Smart RO/Smart RO Nitrate with TD 1 or TD/Min 1: chlorine and chloramine. The corresponding 2-year TD 2/TD-Min 2 rows list chlorine, without chloramine.
WQA 53, Culligan, Specified Aquasential TD/TD-Min configurations: Total PFAS, lead, mercury, cyst, VOC, MTBE and turbidity. Separate AS3 cartridge rows have arsenic claims.
WQA 58, Culligan, RO with RO50 and Smart RO Nitrate with RO75 include nitrate/nitrite. Smart RO with RO75 does not list nitrate/nitrite. All these named tanked RO rows include arsenic V (50 ppb influent), fluoride, TDS, lead, cyst and named metals.
WQA 401, Culligan, Named Aquasential TD/TD-Min configurations: microplastics and selected emerging compounds. Do not transfer these claims to legacy or tankless products.

Under-sink RO

Culligan: legacy AC-30

Good Water Machine AC-30 variants with the listed prefilters, RO membrane and GAC postfilter

D–C 23–31/1003 certified · 0 lab-tested

These inspected 58 rows name lead, TDS and other specified metals. Additional legacy claims still need their own record; Aquasential claims do not transfer.

Letter spans this range because a cost or materials input is unresolved. Open the calculation below for the exact bounds.

Results that matter

3 of 13 categories have matching live-listing support for this precise cartridge configuration. One-year/2-year TD cartridges and nitrate/non-nitrate membranes have different claim sets. Source

See grade calculation, costs, materials and sources

Grade calculation: D–C · 23–31/100
Evidence: 80 × (3 + 0.6 × 0) ÷ 13 = 18.46. Materials: 3/10. Annual replacement cost: 2–10/10. Total rounded once. No double counting of laboratory and certified claims.
Replacement cost: Current annual total not established; full cost-point range shown. Dealer-priced system and service. No national replacement total is assumed. The displayed score spans every original cost band (2–10 points); where both endpoints give A, the letter is A even without a local quote.
Materials: Plastic reservoirs and/or filter housings form part of this configuration’s water path.
System purchase: See linked seller for current system price. Upfront purchase is excluded from the original annual-consumables score.
Minerals: RO reduces dissolved minerals. Optional remineralization changes the final water and adds replacement cost.
Reviewed: 12 September 2026. Certification footnotes, model restrictions and replacement instructions apply.

Performance certification listings

WQA 58, Culligan Legacy Good Water Machine AC-30 rows in the WQA 58 listing: lead, TDS and the specified metals, with the listed prefilters, RO membrane and GAC postfilter. Aquasential claims do not transfer.

Under-sink RO

Culligan Aquasential: Tankless

Tankless RO or Tankless RO with Mineral Boost+, with listed RO Filter

D 11–19/1001 certified · 0 lab-tested

The inspected 58 rows list TDS only. Optional 0.5-gallon storage tank; 715 gpd listed production rating. Tanked Aquasential claims do not transfer.

Letter unchanged across the full displayed input range. Open the calculation below for the exact bounds.

Results that matter

1 of 13 categories have matching live-listing support for this precise cartridge configuration. One-year/2-year TD cartridges and nitrate/non-nitrate membranes have different claim sets. Source

See grade calculation, costs, materials and sources

Grade calculation: D · 11–19/100
Evidence: 80 × (1 + 0.6 × 0) ÷ 13 = 6.15. Materials: 3/10. Annual replacement cost: 2–10/10. Total rounded once. No double counting of laboratory and certified claims.
Replacement cost: Current annual total not established; full cost-point range shown. Dealer-priced system and service. No national replacement total is assumed. The displayed score spans every original cost band (2–10 points); where both endpoints give A, the letter is A even without a local quote.
Materials: Plastic reservoirs and/or filter housings form part of this configuration’s water path.
System purchase: See linked seller for current system price. Upfront purchase is excluded from the original annual-consumables score.
Minerals: RO reduces dissolved minerals. Optional remineralization changes the final water and adds replacement cost.
Reviewed: 12 September 2026. Certification footnotes, model restrictions and replacement instructions apply.

Performance certification listings

WQA 58, Culligan Aquasential Tankless RO rows in the WQA 58 listing: TDS only. Tanked Aquasential claims do not transfer.

Pitcher / dispenser

Epic Pure XP

Pure XP EW-RPFT-PXP-01, 100-gallon cartridge

B 50/1000 certified · 11 lab-testedLab tested, not certified

Current XP data sheet reports July 2026 testing. NSF’s inspected component listing is materials-only despite broader wording in the manufacturer sheet.

Results that matter

Pure XP July 2026 manufacturer laboratory summary: lead at pH 8.5, 0.149→0.006 mg/L (96%); nitrite 3.207→0.097 (97%); chloramine 1.97→0.19 (90.4%); ibuprofen 432→17 ng/L (96.1%, not printed 99.9%). It also reports fluoride, arsenic, named PFAS/metals, a 3-µm cyst surrogate, and VOC surrogate results. Laboratories are unnamed in the summary; results are manufacturer-reported testing, not certified reduction. Source
The XP microplastics row uses incompatible influent/effluent units (particles/L versus mg/L). No numerical microplastics credit is assigned until that error is resolved. Particulate testing alone is not proof of the separately labeled microplastics result. Source

See grade calculation, costs, materials and sources

Grade calculation: B · 50/100
Evidence: 80 × (0 + 0.6 × 11) ÷ 13 = 40.62. Materials: 3/10. Annual replacement cost: 6/10. Total rounded once. No double counting of laboratory and certified claims.
Replacement cost: $197.10 per year at 1 US gallon/day. $54 replacement cartridge for the reusable casing, 100 gallons; 365/100 × $54. A new casing is a separate purchase. Price / replacement source
Materials: Plastic reservoirs and/or filter housings form part of this configuration’s water path.
System purchase: Pure XP pitcher: $84 plastic lid or $89 bamboo lid. Upfront purchase is excluded from the original annual-consumables score.
Minerals: Do not infer mineral retention or removal from a contaminant-count grade. Cartridge type matters; see the named manufacturer configuration.
Reviewed: 12 September 2026. Certification footnotes, model restrictions and replacement instructions apply.

Materials-only certification listings

NSF 42, Epic components, EveryTap, Everywhere, Nano XP and Pure XP: materials safety only. This record does not certify chlorine reduction.

No matching performance certification was established for this configuration. This statement does not assert that every possible directory alias was exhausted.

Pitcher / dispenser

Epic Nano XP

Nano XP EW-RPFT-NXP-01, 100-gallon cartridge

C 42/1000 certified · 9 lab-testedLab tested, not certified

Current XP data sheet reports July 2026 testing. NSF’s inspected component listing is materials-only despite broader wording in the manufacturer sheet.

Results that matter

Nano XP August 2026 manufacturer laboratory summary names this cartridge separately and reports metal, PFAS, cyst-surrogate, VOC/drug, chlorine and chloramine reductions. Read its before/after columns; blanket printed percentages should not override those measurements. The summary does not identify the testing laboratories by name. Source
The sheet’s microplastics row requires unit clarification; it is not credited as a quantitative microplastics result. Source

See grade calculation, costs, materials and sources

Grade calculation: C · 42/100
Evidence: 80 × (0 + 0.6 × 9) ÷ 13 = 33.23. Materials: 3/10. Annual replacement cost: 6/10. Total rounded once. No double counting of laboratory and certified claims.
Replacement cost: $167.90 per year at 1 US gallon/day. $46 replacement cartridge for reusable casing, 100 gallons; 365/100 × $46. Price / replacement source
Materials: Plastic reservoirs and/or filter housings form part of this configuration’s water path.
System purchase: Nano XP pitcher $82. Upfront purchase is excluded from the original annual-consumables score.
Minerals: Do not infer mineral retention or removal from a contaminant-count grade. Cartridge type matters; see the named manufacturer configuration.
Reviewed: 12 September 2026. Certification footnotes, model restrictions and replacement instructions apply.

Materials-only certification listings

NSF 42, Epic components, EveryTap, Everywhere, Nano XP and Pure XP: materials safety only. This record does not certify chlorine reduction.

No matching performance certification was established for this configuration. This statement does not assert that every possible directory alias was exhausted.

Under-sink carbon

Multipure: Aquaversa

Aquaversa with CB6

B 63/1008 certified · 0 lab-tested

Eight category claims in the inspected listing. Aquaversa does not inherit the arsenic or PFOA/PFOS claims of the other configurations.

Results that matter

8 categories documented in the certification evidence below. Each green badge opens the matching listing and names the narrower claim scope.

See grade calculation, costs, materials and sources

Grade calculation: B · 63/100
Evidence: 80 × (8 + 0.6 × 0) ÷ 13 = 49.23. Materials: 6/10. Annual replacement cost: 8/10. Total rounded once. No double counting of laboratory and certified claims.
Replacement cost: $95.00 per year at 1 US gallon/day. CB6 replacement $95, annual replacement in the 365-gallon scenario (below its 750-gallon rated capacity). Price / replacement source
Materials: Stainless-steel treatment housing with polymer tubing, seals and filter components; some plastic contact. Design source
System purchase: See linked seller for current system price. Upfront purchase is excluded from the original annual-consumables score.
Minerals: Do not infer mineral retention or removal from a contaminant-count grade. Cartridge type matters; see the named manufacturer configuration.
Reviewed: 12 September 2026. Certification footnotes, model restrictions and replacement instructions apply.

Performance certification listings

NSF listings, Multipure, Match model and cartridge: Aquaversa/CB6; Aquaperform/CB11As; Aquapremier/CBXT; Aqualuxe/CBLX. Aquaversa does not inherit the arsenic and PFOA/PFOS claims of the other three configurations.

Under-sink carbon

Multipure: Aquaperform / Aquapremier / Aqualuxe

Aquaperform with CB11As; Aquapremier with CBXT; Aqualuxe with CBLX

A 74/10010 certified · 0 lab-tested

Ten categories in the inspected configurations. Preserve each model’s capacity and footnotes. Arsenic scope is V at the listed concentration limit; PFAS scope is PFOA/PFOS.

Results that matter

10 categories documented in the certification evidence below. Each green badge opens the matching listing and names the narrower claim scope.

See grade calculation, costs, materials and sources

Grade calculation: A · 74/100
Evidence: 80 × (10 + 0.6 × 0) ÷ 13 = 61.54. Materials: 6/10. Annual replacement cost: 6/10. Total rounded once. No double counting of laboratory and certified claims.
Replacement cost: $150.00–$193.24 per year at 1 US gallon/day. Aquaperform CB11As $150 (600-gallon capacity; calendar limit controls). Aqualuxe CBLX $180 annually. Aquapremier CBXT $180 with a 340-gallon rated capacity, so the volume limit is reached first: $180 × 365 ÷ 340 = $193.24. All fall in the same $120–$200 cost band at this usage. Price / replacement source
Materials: Stainless-steel treatment housing with polymer tubing, seals and filter components; some plastic contact. Design source
System purchase: See linked seller for current system price. Upfront purchase is excluded from the original annual-consumables score.
Minerals: Do not infer mineral retention or removal from a contaminant-count grade. Cartridge type matters; see the named manufacturer configuration.
Reviewed: 15 September 2026 (Aquapremier cost corrected for 340-gallon capacity; first reviewed 12 September). Certification footnotes, model restrictions and replacement instructions apply.

Performance certification listings

NSF listings, Multipure, Match model and cartridge: Aquaversa/CB6; Aquaperform/CB11As; Aquapremier/CBXT; Aqualuxe/CBLX. Aquaversa does not inherit the arsenic and PFOA/PFOS claims of the other three configurations.

Countertop RO

Sans

Sans countertop RO, model WF-01 in SGS report

C 44/1000 certified · 9 lab-testedLab tested, not certified

SGS reports demonstrate laboratory reductions at start-up. They do not certify the system or establish every reduction at end of cartridge life.

Results that matter

SGS XMF23-013887-01 (January 2024), WF-01 start-up: lead >99.3%, arsenic >97.2%, fluoride/nitrate >99.9%, TDS >98.6%, PFOA >98.8%, PFOS >99.0%, and selected metals. “Free Chloride” is a labeling error in the results table; the specified GB/T 5750.11 method is for free chlorine (>99.0%). Source
Separate SGS preliminary report (XMF24-0000704-02, March 2024) measures a 0.5-µm microplastic challenge: 27,139,333→1,694 counts/mL. SGS rounds this to 99.9%; the raw counts work out to about 99.994%. This is laboratory evidence, not NSF 401 certification. Source

See grade calculation, costs, materials and sources

Grade calculation: C · 44/100
Evidence: 80 × (0 + 0.6 × 9) ÷ 13 = 33.23. Materials: 3/10. Annual replacement cost: 8/10. Total rounded once. No double counting of laboratory and certified claims.
Replacement cost: $97.48 per year at 1 US gallon/day. PPC $34.99 and VOC $34.99 yearly, plus RO $54.99 every 2 years. Annualized $97.48; excludes subscriptions and optional mineral cartridge. Price / replacement source Price / replacement source Price / replacement source
Materials: Plastic reservoirs and/or filter housings form part of this configuration’s water path.
System purchase: See linked seller for current system price. Upfront purchase is excluded from the original annual-consumables score.
Minerals: RO reduces dissolved minerals. Optional remineralization changes the final water and adds replacement cost.
Reviewed: 12 September 2026. Certification footnotes, model restrictions and replacement instructions apply.

No matching performance certification was established for this configuration. This statement does not assert that every possible directory alias was exhausted.

Additional product / testing information

Manufacturer technology and testing page

Countertop gravity

The Water Machine

Gravity system and its exact black-carbon elements

D 8–20/1000 certified · 0 lab-tested12 claims not credited

The manufacturer publishes contaminant tables. They are not certification, and some percentages/units need reconciliation with original signed reports.

Letter unchanged across the full displayed input range. Open the calculation below for the exact bounds.

Results that matter

The seller publishes broad contaminant tables, but a matching signed laboratory report and consistent units were not established. Those advertised results remain claims with no reduction-evidence points. Optional AF-2 arsenic/fluoride elements are separate from the base black-carbon pair. Source

See grade calculation, costs, materials and sources

Grade calculation: D · 8–20/100
Evidence: 80 × (0 + 0.6 × 0) ÷ 13 = 0.00. Materials: 6–10/10. Annual replacement cost: 2–10/10. Total rounded once. No double counting of laboratory and certified claims.
Replacement cost: Current annual total not established; full cost-point range shown. $84.99 per black-carbon pair. The seller advertises 6,000 gallons, which at one gallon a day would amortize to about $5 a year, but that life is an advertised figure that earns no evidence credit elsewhere on this card, and no calendar replacement interval was established. The score therefore shows the full 2–10 cost-point range rather than the maximum. Price / replacement source
Materials: All-glass chambers per the maker; tap and minor wetted-component composition were not established. Materials points span 6–10. Design source
System purchase: See linked seller for current system price. Upfront purchase is excluded from the original annual-consumables score.
Minerals: Do not infer mineral retention or removal from a contaminant-count grade. Cartridge type matters; see the named manufacturer configuration.
Reviewed: 15 September 2026 (cost basis revised; first reviewed 12 September). Certification footnotes, model restrictions and replacement instructions apply.

No matching performance certification was established for this configuration. This statement does not assert that every possible directory alias was exhausted.

Additional product / testing information

Manufacturer test-results tables

Whole-house and shower systems

Assessed for their own model-specific claims; not graded against the drinking-water rubric. Some whole-house systems have health-effect reduction certifications, so check the actual listing.

Whole house

Aquasana Rhino: standard

EQ-1000 with the specified replacement tank

Scope review0 certified · 1 lab-tested

The performance document describes independent 42 testing. Its filename containing “Certified” is not proof of certification.

Results that matter

Published manufacturer performance document reports chlorine reduction under NSF/ANSI 42 testing. Testing is separate from product performance certification; materials/structural approvals do not certify contaminant reduction. Source

See grade calculation, costs, materials and sources

Materials: Dual-chamber upflow point-of-entry system: food-grade HDTE (high-density tri-extruded) plastic tank(s) holding KDF copper-zinc oxidation media plus crushed mineral stone and high-grade activated carbon; 20-inch 5-micron sediment pre-filter and 10-inch post-filter in plastic sump housings; brass fittings, bend supports and shut-off valves. No salt, backflushing or electricity required (UV add-on requires power).
System purchase: See linked seller for current system price. Upfront purchase is excluded from the original annual-consumables score.
Minerals: Do not infer mineral retention or removal from a contaminant-count grade. Cartridge type matters; see the named manufacturer configuration.
Reviewed: 12 September 2026. Certification footnotes, model restrictions and replacement instructions apply.

No matching performance certification was established for this configuration. This statement does not assert that every possible directory alias was exhausted.

Additional product / testing information

Whole house

Aquasana Rhino Max Flow

WH-1010 with WH-1010R

Scope review0 certified · 1 lab-tested

The manual describes WQA 61 materials safety and CSA structural/materials certification, explicitly excluding contaminant reductions. It separately describes 42 testing.

Results that matter

Published manufacturer performance document reports chlorine reduction under NSF/ANSI 42 testing. Testing is separate from product performance certification; materials/structural approvals do not certify contaminant reduction. Source

See grade calculation, costs, materials and sources

Materials: Two sealed upflow tanks in series molded from food-grade HDTE (high-density tri-extruded) polymer: bottom tank activated carbon (chlorine reduction), top tank copper-zinc KDF (assists chlorine reduction, inhibits bacteria/algae growth in-system); 20-inch sediment pre-filter and 10-inch post-filter in plastic housings; install kit with brass fittings/couplings/shut-off valves and Schedule 80 PVC components; rated 14.0 gpm (14.5 gpm peak), 20-100 psi, 40-90°F.
System purchase: See linked seller for current system price. Upfront purchase is excluded from the original annual-consumables score.
Minerals: Do not infer mineral retention or removal from a contaminant-count grade. Cartridge type matters; see the named manufacturer configuration.
Reviewed: 12 September 2026. Certification footnotes, model restrictions and replacement instructions apply.

No matching performance certification was established for this configuration. This statement does not assert that every possible directory alias was exhausted.

Additional product / testing information

Shower

Eskiin

Shower head / filter, exact model must be identified

Scope review0 certified · 0 lab-tested

No exact-model performance certificate has been verified here. A single field test describes its tested sample and conditions; it does not establish zero reduction for every unit.

Results that matter

The manufacturer markets chlorine/taste/odor or shower-water treatment. No matching performance certificate was established here. Claims are visible but are not upgraded to certification. Source

See grade calculation, costs, materials and sources

Materials: ABS (acrylonitrile butadiene styrene) showerhead body with painted/plated finish; filter cartridge media blend of KDF-55, calcium sulfite and coconut activated carbon; California SKUs ship with a 1.8 gpm flow restrictor
System purchase: See linked seller for current system price. Upfront purchase is excluded from the original annual-consumables score.
Minerals: Do not infer mineral retention or removal from a contaminant-count grade. Cartridge type matters; see the named manufacturer configuration.
Reviewed: 12 September 2026. Certification footnotes, model restrictions and replacement instructions apply.

No matching performance certification was established for this configuration. This statement does not assert that every possible directory alias was exhausted.

Additional product / testing information

Manufacturer information

Whole house

GE GXWH40L

GXWH40L housing; identify FXHTC carbon or FXHSC sediment cartridge

Scope review0 certified · 0 lab-tested

GE describes the system as reducing sediment and impurities; no exact system-and-cartridge performance certificate was established in this review. A retailer listing and the housing alone do not establish the reduction scope.

Results that matter

GE’s product page says the system filters water “at the main supply reducing sediment and impurities.” No matching performance certificate was established here, so no contaminant category is credited or listed as claimed. Source

See grade calculation, costs, materials and sources

Materials: Plastic (polypropylene) 'Big Blue' style sump with clear sump option and metal/plastic cap, 1-inch plumbing connections, pressure relief valve, bypass and mounting bracket; cartridges are carbon-impregnated wrap over a sediment core (FXHTC) or spun/pleated polypropylene sediment (FXHSC/FXWSC). No ceramic element is used in any GE whole-house cartridge.
System purchase: See linked seller for current system price. Upfront purchase is excluded from the original annual-consumables score.
Minerals: Do not infer mineral retention or removal from a contaminant-count grade. Cartridge type matters; see the named manufacturer configuration.
Reviewed: 12 September 2026. Certification footnotes, model restrictions and replacement instructions apply.

No matching performance certification was established for this configuration. This statement does not assert that every possible directory alias was exhausted.

Additional product / testing information

Manufacturer information

Whole house

KIND

Whole-house filter; identify filter and any conditioning option

Scope review0 certified · 0 lab-tested

A finished-system performance certificate has not been verified here. A salt-free conditioning option should not be treated as verified hardness removal without evidence.

Results that matter

The manufacturer markets chlorine/taste/odor reduction and states NSF/ANSI 42, 61 and 372 certification (“NSF-Certified Components”). No certifier listing showing a performance claim for this system was found, so the claims are visible but are not upgraded to certification. Source

See grade calculation, costs, materials and sources

Materials: Patented precision-molded one-piece plastic manifold (no bulky tanks), 5-micron pleated washable sediment cartridge, catalytic activated coconut-shell carbon block cartridge, ESOFT template-assisted-crystallization salt-free softening media; wetted parts described by the maker as NSF/WQA approved
System purchase: See linked seller for current system price. Upfront purchase is excluded from the original annual-consumables score.
Minerals: Do not infer mineral retention or removal from a contaminant-count grade. Cartridge type matters; see the named manufacturer configuration.
Reviewed: 12 September 2026. Certification footnotes, model restrictions and replacement instructions apply.

No matching performance certification was established for this configuration. This statement does not assert that every possible directory alias was exhausted.

Additional product / testing information

Shower

Pristine Hydro

Ultimate Dual KDF shower filter without head

Scope review0 certified · 0 lab-tested

The product page is a source for manufacturer claims, not certification. Under-counter system analyses do not apply to this shower unit.

Results that matter

The manufacturer markets chlorine/taste/odor or shower-water treatment. No matching performance certificate was established here. Claims are visible but are not upgraded to certification. Source

See grade calculation, costs, materials and sources

Materials: Ultimate Dual KDF: cartridge housing containing 30+ oz KDF55 + KDF85 redox media, SIR-900 resin and Centaur activated catalytic carbon; female-in/male-out standard shower threading, installs between shower arm and head, sold with or without head. Aqualux: 4-stage cartridge of coconut shell carbon, KDF chlorine-scavenging media, bioceramic pH spheres and sediment pad, in a chrome or white housing with included shower head; 15,000 gal / 1.3-2.6 gpm / 20-80 psi / 41-100 F, 4-6 month expected life.
System purchase: See linked seller for current system price. Upfront purchase is excluded from the original annual-consumables score.
Minerals: Do not infer mineral retention or removal from a contaminant-count grade. Cartridge type matters; see the named manufacturer configuration.
Reviewed: 12 September 2026. Certification footnotes, model restrictions and replacement instructions apply.

No matching performance certification was established for this configuration. This statement does not assert that every possible directory alias was exhausted.

Additional product / testing information

Shower

Weddell Water: Duo

WD-100 with WD-100F

Scope review1 certified · 0 lab-tested

Certified rating: 10,000 gallons at 2.0 gpm for free available chlorine. Separate advertised or laboratory ratings must not replace this certified rating. PFAS and particulate tests do not inherit 177 certification.

Results that matter

1 category documented in the certification evidence below. Each green badge opens the matching listing and names the narrower claim scope.

See grade calculation, costs, materials and sources

Materials: Dual polymer cartridge chambers; carbon and sediment elements. Certified WD100/WD100F rating is 10,000 gallons at 2.0 gpm. Other advertised flow/capacity values are separate.
System purchase: See linked seller for current system price. Upfront purchase is excluded from the original annual-consumables score.
Minerals: Do not infer mineral retention or removal from a contaminant-count grade. Cartridge type matters; see the named manufacturer configuration.
Reviewed: 12 September 2026. Certification footnotes, model restrictions and replacement instructions apply.

Performance certification listings

NSF 177, Weddell Duo, WD-100 with WD-100F: free available chlorine reduction; 10,000 gallons at 2.0 gpm.

Additional product / testing information

Manufacturer information

Start with your water.

A broad grade cannot tell you what is in your tap water. Before choosing a filter, find out what you are actually trying to remove, then match that contaminant to the exact system, cartridge and certification claim.

On municipal water: read your utility’s annual Consumer Confidence Report. It lists what was detected and at what level.
On a private well: the utility report does not cover you. EPA recommends testing at least yearly for total coliform bacteria, nitrate, total dissolved solids and pH, plus arsenic, metals or other contaminants based on local risks. This guide’s score does not cover bacteria or viruses, so treat that separately.
Older plumbing: lead comes from pipes and fixtures after the water leaves the utility, so test at your own tap.
Then use the checkboxes above to show only filters with a live certification for that contaminant.

EPA’s guide to certified lead filters

My setup

Waterdrop G3P600

Six certified categories on the current IAPMO listings plus a maker-published VOC test. Grade B, 50 out of 100, with about $145 a year in replacement filters at one gallon a day. I added the remineralizing cartridge, which changes the cost and the final TDS.

Comparing feed-water and filtered-water TDS helps estimate membrane rejection. A TDS reading does not identify individual contaminants.

See the G3P600 entry

How my score is tallied

This is my score, not an industry standard. I decided what matters and how much, and every number is on the card so you can check my math. One sentence version: a filter earns points for what it has proven, not for what it advertises. 80 points for proven reduction, 10 for materials, 10 for yearly replacement cost. The grades do not predict whether your water is safe or whether a filter fits your particular water problem, and the 13 categories do not assess bacteria, virus or protozoa protection beyond the cyst claim.

Evidence: 80 points

For each of 13 categories, certification documented for the named configuration earns 1 unit; published laboratory results earn 0.6 when certification is not credited; unsupported claims earn 0. Evidence points = 80 × (certified categories + 0.6 × laboratory categories) ÷ 13. No category is counted twice.

Lab-evidence rule (published 15 September 2026). A category earns 0.6 laboratory credit when a published result names the exact product or a family the maker explicitly applies to it, reports influent and effluent in consistent units with the influent above the reporting limit, and shows at least 50% reduction. A result under 50%, or one whose effluent stays above the federal drinking-water limit at a comparable challenge level, is shown as partial and earns nothing. Whether the laboratory is named affects the note on the badge, not the credit: a maker-published summary with unnamed laboratories and a signed accredited report both count as maker-commissioned. The same rule was applied to every brand; Santevia and Ecofiltro were regraded when it was written down.

Lab evidence comes in two colors. Amber is manufacturer-commissioned testing, at an accredited lab or in a maker-published summary; ongoing certification oversight was not established. Blue is a test someone independent ran, usually one unit and one tap. Both earn the same 0.6 because neither is a certification; the color tells you who paid. A summary with unnamed laboratories is weaker than a signed original, and the card says so. Single-sample and start-of-life results do not prove performance through the cartridge's life. Open the badge for the actual numbers.

Green badges link to NSF, WQA or IAPMO listings. Purple badges link to dated certification copies or performance sheets whose live-directory status was not independently confirmed; they earn documented-certification credit, and their date/status stays visible. Materials-only listings and NSF/ANSI/CAN 372 lead-content certification earn no water-contaminant reduction credit. Lab and product links are labeled separately.

Cost, materials and score ranges

Cost uses 1 US gallon/day (365/year), current one-time prices, annualized consumables and the earlier applicable volume/calendar limit. Bundle/subscription savings are excluded unless explicitly stated. Membranes are amortized. Taxes, shipping, installation, electricity, wastewater and upfront system purchase are excluded. Assumed maintenance scenarios and manufacturer-rated capacities are identified; actual water can shorten filter life.

Annual replacement bands: ≤$60 = 10 points; >$60–$120 = 8; >$120–$200 = 6; >$200–$300 = 4; >$300 = 2. If no complete annual price is established, both extremes (2–10 points) are calculated. This is a sensitivity range, not an invented cost estimate. A stable letter can still be established; a boundary-crossing range shows both letters.

Materials preference: no plastic contact = 10; some plastic contact = 6; plastic reservoir/path = 3. Glass or steel storage alone does not establish a plastic-free path. Where configuration or minor fittings remain unresolved, the displayed range includes the applicable alternatives. These points are editorial preference, not a measured health risk.

Round the total once, then assign A ≥65; B 45–64; C 25–44; D <25. Whole-house and shower systems are reviewed for their own scope, outside the drinking-water grade.

What the categories mean

Lead, PFAS, fluoride, arsenic, nitrate/nitrite, cysts, VOCs, selected drugs, microplastics, chlorine, chloramine, TDS and other metals. Group credit means evidence for at least one relevant member, not every substance in the group. Lead and arsenic are excluded from “other metals” to avoid double counting. Arsenic species, PFAS compounds, VOC surrogate scope and microplastic particle size matter.

A non-detect is a reporting limit, not zero. Where a table’s percentage disagrees with its measurements, the before/after values control. A sample already below a reporting limit does not prove removal. Mixed or adverse results remain visible. Surrogate experiments are identified and must not be described as tests of every represented substance.

NSF’s explanation of water-treatment standards

Model scope and corrections

Certifications belong to the exact system and replacement cartridge, not an entire brand. Reference configurations are named for prices. A sibling may have the same certification scope and different cost. Original comment counts affect only the “Most named” order. For corrections, supply the exact model, original report and current certifier record.

Other brands named in the original comments

AO Smith
Alexapure
Alkaviva
American Water
AquaNui
Aquabliss
Aqwa
Bluedot
Bluevua
Body Glove
Cloud RO
Delo
Elkay
Filterbaby
GoPure Pod
Hague
Hello Klean
Hillside Home Store
Jolie
Nikken
Patriot
Phox
Pur
PuraHome
Puure
Radiant Life
Rorra
Sentry
Spring Water Systems
Sprite
Truu
Viomi
Vollara
Water2
Waterwise
Zazen

Evidence first published 12 September 2026; revised 15, 22 and 29 September 2026. Published by Hormone Specialist. The review and scoring method are my own, tallied as described above; every card shows its arithmetic. Confirm the current listing and your exact model and cartridge before relying on a claim.

Your Water Filters Recommendations, Graded on One Standard

Your water filters.Checked against the certification databases.

Drinking-water filters

Berkey: Phoenix configurations

Results that matter

Performance certification listings

Berkey: Black Berkey configurations

Results that matter

AquaTru Classic

Results that matter

Performance certification listings

AquaTru Carafe

Results that matter

Performance certification listings

AquaTru Under Sink

Results that matter

Performance certification listings

Clearly Filtered: pitcher

Results that matter

Performance certification listings

Clearly Filtered: under sink

Results that matter

Performance certification listings

Waterdrop G2 / A2 / K6

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Waterdrop G3P600

Results that matter

Performance certification listings

Waterdrop G3P800

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Performance certification listings

Waterdrop X16

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Performance certification listings

Enagic: LeveLuk K8

Results that matter

Performance certification listings

Santevia Gravity: Fluoride Filter

Results that matter

Additional product / testing information

Santevia Glass / MINA: Fluoride refill

Results that matter

Additional product / testing information

BOROUX: Legacy / Compact

Results that matter

Performance certification listings

Brita Elite: Pacifica OB41

Results that matter

Performance certification listings

Dated certification documents (live status not independently confirmed)

ZeroWater: legacy 5-stage

Results that matter

Dated certification documents (live status not independently confirmed)

Aarke Purifier

Results that matter

Additional product / testing information

Culligan ZeroWater: current 5-stage

Results that matter

Dated certification documents (live status not independently confirmed)

Additional product / testing information

LifeStraw Home: Glass 7-Cup

Results that matter

Performance certification listings

iSpring: base RCC7 models

Results that matter

Performance certification listings

iSpring: expanded listing models

Results that matter

Performance certification listings

Ecofiltro

Results that matter

Additional product / testing information

LARQ PureVis: Advanced

Results that matter

Additional product / testing information

LARQ PureVis: Essential

Results that matter

Additional product / testing information

APEC: Essence

Results that matter

Your water filters.
Checked against the certification databases.