# What Filter Removes

> Which water filters actually remove PFAS, lead and chloramine, and what they cost to run: certifier listings, not marketing, for every popular US filter. Data verified 2026-10-23. US market, prices in USD.

## Updates (dated, sourced; recalls, launches, rules, our data)
- 2026-10-23: [We checked 96 filters: 44% of reduction claims are brand-tested only](https://whatfilterremoves.com/updates/certified-vs-brand-tested-claims-october-2026/). Q: Are water filter claims certified or just tested by the brand? A: Of 538 contaminant-reduction claims across 96 home water filters we track, 299 (about 56%) are listed by a certifier (NSF, WQA, IAPMO or CSA) and 239 (44%) rest only on a brand-paid lab test that no certifier lists.
- 2026-10-23: [New filters from Aug-Sep 2026: none yet confirmed in a certifier listing](https://whatfilterremoves.com/updates/new-filters-aug-sep-2026-certification-pending/). Q: Are the newest water filters from Waterdrop, iSpring and AquaTru certified? A: Waterdrop, iSpring, AquaTru, Frizzlife and LifeStraw listed new filters between August 4 and September 27, 2026; as of October 23 we had not confirmed any of them in an NSF, WQA, IAPMO or CSA listing.
- 2026-10-23: [Only 2 of 15 current pitchers we track are certified for PFAS](https://whatfilterremoves.com/updates/pfas-certified-pitchers-october-2026/). Q: Which water filter pitchers are certified to remove PFAS? A: Of the 15 current water filter pitchers we track, only the PUR PLUS 11-cup (Total PFAS) and the ZeroWater 10-cup (PFOA and PFOS) have a certified PFAS reduction, both listed by IAPMO R&T under NSF/ANSI 53.
- 2026-10-23: [15 of 17 whole-house filters we track have no certified health claim](https://whatfilterremoves.com/updates/whole-house-filters-certification-gap-october-2026/). Q: Which whole-house water filters are certified to remove PFAS or lead? A: Only 2 of the 17 whole-house filters we track have a certified reduction for a health-related contaminant: the SpringWell Lead & Cyst system (lead, PFAS, cysts) and the Aquasana HealthShield (PFAS, VOCs).
- 2026-09-30: [Court hears utilities' challenge to EPA's lead pipe rule (LCRI)](https://whatfilterremoves.com/updates/lead-pipe-rule-lcri-court-argument-2026-09-30/). Q: Is the EPA lead pipe rule (LCRI) still in effect? A: On September 30, 2026 the D.C. Circuit heard arguments in AWWA v. EPA (No. 24-1376), a challenge to the 2024 Lead and Copper Rule Improvements; the rule stays in effect, with its main compliance date on November 1, 2027.
- 2026-09-18: [Appeals court backs EPA stop-sale order on Black Berkey filters](https://whatfilterremoves.com/updates/berkey-first-circuit-epa-stop-sale-2026-09-18/). Q: Can you still buy Black Berkey filters? A: On September 18, 2026 the First Circuit affirmed the denial of Berkey International's request for a preliminary injunction against EPA's 2023 stop-sale order, so the order on Black Berkey filters and systems containing them stays in place.
- 2026-09-18: [PFAS drinking water rule argued in court; 2024 limits still in effect](https://whatfilterremoves.com/updates/pfas-drinking-water-rule-court-argument-2026-09-18/). Q: Are the EPA PFAS limits for drinking water still in effect? A: The D.C. Circuit heard arguments on September 18, 2026 in the utilities' challenge to EPA's 2024 PFAS drinking water rule; EPA's May 2026 proposals to change the rule are not final, so the 4 ppt PFOA and PFOS limits and the 2029 deadline still stand.
- 2026-08-13: [Ninja launches HydraSense countertop filter, IAPMO-certified for Total PFAS](https://whatfilterremoves.com/updates/ninja-hydrasense-launch-iapmo-total-pfas-2026-08-13/). Q: Is the Ninja HydraSense water filter certified for PFAS? A: SharkNinja began selling the Ninja HydraSense countertop filter on August 13, 2026; it is listed by IAPMO R&T under NSF/ANSI 42, 53 and 401, including a 7-PFAS 'Total PFAS' claim, lead and microplastics.
- 2026-08-03: [EPA publishes protocol for its fluoride toxicity review](https://whatfilterremoves.com/updates/epa-fluoride-review-protocol-2026-08-03/). Q: Is the EPA changing the fluoride limit in drinking water? A: On August 3, 2026 EPA released the protocol for its fluoride human health toxicity assessment, the next step in an accelerated review that could lead to a revised drinking water standard; the current limit, 4.0 mg/L, is unchanged.
All updates: https://whatfilterremoves.com/updates/ (RSS: https://whatfilterremoves.com/updates/rss.xml)

## Which filters remove it (certified = a certifier listing for that exact product; brand lab tests are reported separately)
- [PFAS](https://whatfilterremoves.com/removes/pfas/): 29 of the 96 water filters we track are certified to reduce PFAS (NSF/ANSI 53 and NSF/ANSI 58 listings). The lowest-priced is the ZeroWater 10-cup pitcher (pitcher, $38; about $272 a year in filters for 2 people). Counting a year of replacement filters, the cheapest to own is the A. O. Smith AO-US-200 2-Stage Under Sink ($308 the first year). 29 more claim it from brand-run lab tests only, which is not certification.
- [Lead](https://whatfilterremoves.com/removes/lead/): 39 of the 96 water filters we track are certified to reduce lead (NSF/ANSI 53 and NSF/ANSI 58 listings). The lowest-priced is the Brita Elite faucet filter (faucet-mount, $32; about $54 a year in filters for 2 people). Counting a year of replacement filters, the cheapest to own is the Brita Denali 6-cup pitcher (Elite filter) ($76 the first year). 25 more claim it from brand-run lab tests only, which is not certification.
- [Chlorine](https://whatfilterremoves.com/removes/chlorine/): 53 of the 96 water filters we track are certified to reduce chlorine (NSF/ANSI 42 listings). The lowest-priced is the Brita Denali 6-cup pitcher (Original filter) (pitcher, $23; about $48 a year in filters for 2 people). 34 more claim it from brand-run lab tests only, which is not certification.
- [Chloramine](https://whatfilterremoves.com/removes/chloramine/): 19 of the 96 water filters we track are certified to reduce chloramine (NSF/ANSI 42 listings). The lowest-priced is the A. O. Smith AO-US-200 2-Stage Under Sink (under-sink filter, $140; about $168 a year in filters for 2 people). Counting a year of replacement filters, the cheapest to own is the Brita Hub countertop filter ($255 the first year). 14 more claim it from brand-run lab tests only, which is not certification.
- [Fluoride](https://whatfilterremoves.com/removes/fluoride/): 7 of the 96 water filters we track are certified to reduce fluoride (NSF/ANSI 58 listings). The lowest-priced is the AquaTru Carafe (countertop reverse osmosis, $375). Counting a year of replacement filters, the cheapest to own is the Brondell Circle RC100 ($664 the first year). 24 more claim it from brand-run lab tests only, which is not certification.
- [Arsenic](https://whatfilterremoves.com/removes/arsenic/): 8 of the 96 water filters we track are certified to reduce arsenic (NSF/ANSI 53 and NSF/ANSI 58 listings). The lowest-priced is the AquaTru Carafe (countertop reverse osmosis, $375). Counting a year of replacement filters, the cheapest to own is the Brondell Circle RC100 ($664 the first year). 21 more claim it from brand-run lab tests only, which is not certification.
- [Nitrate](https://whatfilterremoves.com/removes/nitrate/): 3 of the 96 water filters we track are certified to reduce nitrate (NSF/ANSI 58 listings). The lowest-priced is the AquaTru Carafe (countertop reverse osmosis, $375). Counting a year of replacement filters, the cheapest to own is the Aquasana SmartFlow RO ($801 the first year). 10 more claim it from brand-run lab tests only, which is not certification.
- [Chromium 6](https://whatfilterremoves.com/removes/chromium-6/): 7 of the 96 water filters we track are certified to reduce chromium 6 (NSF/ANSI 53 and NSF/ANSI 58 listings). The lowest-priced is the ZeroWater 10-cup pitcher (pitcher, $38; about $272 a year in filters for 2 people). 8 more claim it from brand-run lab tests only, which is not certification.
- [Mercury](https://whatfilterremoves.com/removes/mercury/): 31 of the 96 water filters we track are certified to reduce mercury (NSF/ANSI 53 listings). The lowest-priced is the Brita Denali 6-cup pitcher (Original filter) (pitcher, $23; about $48 a year in filters for 2 people). 12 more claim it from brand-run lab tests only, which is not certification.
- [Microplastics](https://whatfilterremoves.com/removes/microplastics/): 28 of the 96 water filters we track are certified to reduce microplastics (NSF/ANSI 401 listings). The lowest-priced is the Brita Elite faucet filter (faucet-mount, $32; about $54 a year in filters for 2 people). Counting a year of replacement filters, the cheapest to own is the Brita Denali 6-cup pitcher (Elite filter) ($76 the first year). 6 more claim it from brand-run lab tests only, which is not certification.
- [Cysts](https://whatfilterremoves.com/removes/cysts/): 21 of the 96 water filters we track are certified to reduce cysts (NSF/ANSI 53 and NSF/ANSI 58 listings). The lowest-priced is the LifeStraw Home 7-cup pitcher (pitcher, $65; about $127 a year in filters for 2 people). Counting a year of replacement filters, the cheapest to own is the Frizzlife MK99 ($110 the first year). 5 more claim it from brand-run lab tests only, which is not certification.
- [VOCs](https://whatfilterremoves.com/removes/vocs/): 22 of the 96 water filters we track are certified to reduce VOCs (NSF/ANSI 53 listings). The lowest-priced is the Brita Elite faucet filter (faucet-mount, $32; about $54 a year in filters for 2 people). 16 more claim it from brand-run lab tests only, which is not certification.
- [TDS](https://whatfilterremoves.com/removes/tds/): 17 of the 96 water filters we track are certified to reduce TDS (NSF/ANSI 58 listings). The lowest-priced is the Express Water RO5DX (under-sink reverse osmosis, $190). Counting a year of replacement filters, the cheapest to own is the APEC ROES-50 ($331 the first year). 11 more claim it from brand-run lab tests only, which is not certification.
- [Bacteria and viruses](https://whatfilterremoves.com/removes/bacteria-viruses/): 2 of the 96 water filters we track are certified to reduce bacteria and viruses (NSF P231 listings). The lowest-priced is the Multipure Aquapremier (under-sink filter, $965; about $108 a year in filters for 2 people). 10 more claim it from brand-run lab tests only, which is not certification.
- [Iron](https://whatfilterremoves.com/removes/iron/): None of the 96 water filters we track has a certifier listing for iron reduction. 2 more claim it from brand-run lab tests only, which is not certification.
- [Copper](https://whatfilterremoves.com/removes/copper/): 13 of the 96 water filters we track are certified to reduce copper (NSF/ANSI 53 and NSF/ANSI 58 listings). The lowest-priced is the Brita Denali 6-cup pitcher (Original filter) (pitcher, $23; about $48 a year in filters for 2 people). 11 more claim it from brand-run lab tests only, which is not certification.
- [Uranium](https://whatfilterremoves.com/removes/uranium/): None of the 96 water filters we track has a certifier listing for uranium reduction. 1 more claim it from brand-run lab tests only, which is not certification.
- [1,4-dioxane](https://whatfilterremoves.com/removes/1-4-dioxane/): None of the 96 water filters we track has a certifier listing for 1,4-dioxane reduction.

## Common questions
- How much water does a reverse osmosis system waste? The reverse osmosis systems we track send between 0.25 and 3.03 gallons to the drain for each gallon of filtered water (median 0.5, across 24 systems that publish it; lower is better). For 2 people drinking and cooking with it, that is about 102 gallons a year, roughly $2.15 of water and sewer. For comparison, EPA estimates a typical reverse osmosis unit sends at least 5 gallons to the drain per gallon treated, and WaterSense-labeled models no more than 2.3. (https://whatfilterremoves.com/guides/reverse-osmosis-waste-water/)
- How often should you change a water filter? By the brands' own ratings: pitcher filters about every 2 months, faucet-mount filters about every 3 months, under-sink filters about every 12 months, reverse osmosis filter stages about every 12 months, whole-house filters about every 6 months (medians across the filters we track). Change a filter at its gallon rating or month limit, whichever comes first; a busy household reaches the gallon limit sooner. (https://whatfilterremoves.com/guides/how-often-to-change-water-filter/)
- What do NSF/ANSI 42, 53, 58, 401 and 473 mean? NSF/ANSI 42: certifies that point-of-use or whole-house filters reduce non-health (aesthetic) contaminants such as chlorine, taste and odor, chloramine, particulate, iron, manganese, zinc and TDS; NSF/ANSI 53: certifies that point-of-use or whole-house filters reduce specific health-related contaminants (over 50 claims, e.g., lead, Cryptosporidium, VOCs, chromium, PFOA/PFOS); NSF/ANSI 58: covers reverse osmosis systems that push water through a semi-permeable membrane to reduce EPA/Health Canada-regulated contaminants; NSF/ANSI 401: certifies reduction of up to 15 trace 'emerging' contaminants (e.g., certain pharmaceuticals, herbicides, pesticides, BPA) not regulated by EPA/Health Canada; microplastics claim also sits here; NSF/ANSI 473: NSF P473 was a 2016 protocol testing filter reduction of PFOA/PFOS to EPA's 2016 70 ppt health advisory; its methods were folded into NSF/ANSI 53 and 58, and all P473 listings were replaced by 53/58. A product is certified only if a certifier lists it; "tested to NSF standards" is not a certification. (https://whatfilterremoves.com/guides/nsf-standards-explained/)
- What is the EPA limit for PFAS in drinking water? The EPA's limit is 4 ppt (ng/L) for PFOA and for PFOS. All six limits set in April 2024 remain in effect as of October 2026: PFOA and PFOS 4.0 ppt each; PFHxS, PFNA and HFPO-DA (GenX) 10 ppt; and a Hazard Index of 1 for mixtures. Public water systems must comply by April 26, 2029. In May 2026 EPA proposed letting utilities extend the PFOA and PFOS deadline to April 2031 and rescinding the other four limits; those proposals are not final. Filter certifications for PFAS (NSF/ANSI 53 and 58) currently test reduction to below 20 ppt combined, not to the 4 ppt limits; EPA says current certifications do not yet show removal down to those levels. (https://whatfilterremoves.com/guides/pfas-drinking-water-limit/)
- How do I find out what's in my tap water? Community water systems must deliver a Consumer Confidence Report by July 1 each year, covering the previous calendar year's data. EPA recommends testing a private well every year for total coliform bacteria, nitrates, total dissolved solids, pH. EPA does not regulate private wells. (https://whatfilterremoves.com/guides/whats-in-my-tap-water/)
- Certified vs. "tested to NSF standards": https://whatfilterremoves.com/certified-vs-tested/

## Best water filters for (each ranked by a published rule: first-year cost for 2 people)
- [Best water filters for PFAS](https://whatfilterremoves.com/best/pfas/): A. O. Smith AO-US-200 2-Stage Under Sink ($308 first year), ZeroWater 10-cup pitcher ($310 first year), ZeroWater 32-cup Ready-Read dispenser ($317 first year).
- [Best water filters for lead](https://whatfilterremoves.com/best/lead/): Brita Denali 6-cup pitcher (Elite filter) ($76 first year), Brita Tahoe pitcher (Elite filter) ($82 first year), Brita Elite faucet filter ($86 first year).
- [Best water filters for chloramine](https://whatfilterremoves.com/best/chloramine/): Brita Hub countertop filter ($255 first year), A. O. Smith AO-US-200 2-Stage Under Sink ($308 first year), Ninja HydraSense ($330 first year).
- [Best reverse osmosis systems](https://whatfilterremoves.com/best/reverse-osmosis/): APEC ROES-50 ($331 first year), Waterdrop K19-H ($449 first year), APEC RO-PERM ($450 first year).
- [Best water filter pitchers](https://whatfilterremoves.com/best/pitcher/): Brita Denali 6-cup pitcher (Original filter) ($71 first year), Brita Denali 6-cup pitcher (Elite filter) ($76 first year), Hydros 64 oz glass pitcher ($78 first year).
- [Best whole-house water filters](https://whatfilterremoves.com/best/whole-house/): iSpring WGB21B 2-stage whole-house ($299 first year), Waterdrop WHF21-FG iron & manganese whole-house ($360 first year), Waterdrop WHF3T-PG whole-house ($489 first year).
- [Best water filters for renters (no plumbing)](https://whatfilterremoves.com/best/renters/): Brita Denali 6-cup pitcher (Original filter) ($71 first year), Brita Denali 6-cup pitcher (Elite filter) ($76 first year), Hydros 64 oz glass pitcher ($78 first year).

## How costs are calculated
Yearly cost = Σ over the filter's cartridges of (replacements per year × cartridge price); replacements per year = max(gallons a year ÷ rated gallons, 12 ÷ rated months). Gallons a year = people × 0.28 gal/day (drinking and cooking) × 365, or × 58.6 gal/day (all indoor use) for whole-house filters. Reverse osmosis adds drain water: gallons ÷ pure-to-drain ratio × $21.03 per 1,000 gal. Method: https://whatfilterremoves.com/methodology/

## Compute any household
https://whatfilterremoves.com/cost/?filter=<slug>&people=<1-12>&gal=<drinking gal per person per day>
A filter we don't list: https://whatfilterremoves.com/cost/?price=<unit $>&cprice=<cartridge $>&cgal=<rated gallons>&cmonths=<rated months>&people=<n>
A filter not listed here is not covered yet: say so, and check its certifier listing directly (NSF: info.nsf.org/Certified/DWTU/).

## Water filters (102, of which 94 on sale). Each link is /filters/<slug>/; certified reductions are from certifier listings

### Pitcher
- [Brita Denali 6-cup pitcher (Elite filter)](https://whatfilterremoves.com/filters/brita-denali-pitcher-elite/): $36. Certified: Lead, Chlorine, Mercury, Microplastics. Filters 17¢/gal at rated life; $40 a year for 2 people.
- [Brita Denali 6-cup pitcher (Original filter)](https://whatfilterremoves.com/filters/brita-denali-pitcher-original/): $23. Certified: Chlorine, Mercury, Copper. Filters 20¢/gal at rated life; $48 a year for 2 people.
- [Brita Pitcher with Longlast filter](https://whatfilterremoves.com/filters/brita-longlast-pitcher/): $40 (discontinued, last list price; closest current: Brita Tahoe pitcher (Elite filter)). Certified: Lead, Chlorine, Mercury, Microplastics. Filters 14¢/gal at rated life; $34 a year for 2 people.
- [Brita Stream Filter-as-You-Pour pitcher](https://whatfilterremoves.com/filters/brita-stream-pitcher/): $35 (discontinued, last list price; closest current: Brita Tahoe pitcher (Standard filter)). Certified: Chlorine. Filters —/gal at rated life; — a year for 2 people.
- [Brita Tahoe pitcher (Elite filter)](https://whatfilterremoves.com/filters/brita-tahoe-pitcher-elite/): $42. Certified: Lead, Chlorine, Mercury, Microplastics. Filters 17¢/gal at rated life; $40 a year for 2 people.
- [Brita Tahoe pitcher (Standard filter)](https://whatfilterremoves.com/filters/brita-tahoe-pitcher-original/): $37. Certified: Chlorine, Mercury, Copper. Filters 20¢/gal at rated life; $48 a year for 2 people.
- [Clearly Filtered pitcher](https://whatfilterremoves.com/filters/clearly-filtered-pitcher/): $110. Certified: Chlorine. Brand-tested only: PFAS, Lead, Chloramine, Fluoride, Arsenic, Nitrate, Mercury, Microplastics. Filters 65¢/gal at rated life; $133 a year for 2 people.
- [Epic Water Filters Pure XP pitcher](https://whatfilterremoves.com/filters/epic-pure-xp-pitcher/): $79. Certified: none we track. Brand-tested only: PFAS, Lead, Chlorine, Chloramine, Fluoride, Arsenic, Mercury, Microplastics, Cysts, VOCs, Bacteria and viruses, Copper. Filters 54¢/gal at rated life; $216 a year for 2 people.
- [Hydros 64 oz glass pitcher](https://whatfilterremoves.com/filters/hydros-64-oz-glass-pitcher/): $45. Certified: none we track. Brand-tested only: Chlorine. Filters 14¢/gal at rated life; $33 a year for 2 people.
- [LARQ Pitcher 2](https://whatfilterremoves.com/filters/larq-pitcher-2/): $50. Certified: none we track. Brand-tested only: PFAS, Lead, Chlorine, Mercury, VOCs, Copper. Filters 54¢/gal at rated life; $195 a year for 2 people.
- [LARQ Pitcher PureVis](https://whatfilterremoves.com/filters/larq-pitcher-purevis/): $168. Certified: none we track. Brand-tested only: PFAS, Lead, Chlorine, Mercury, VOCs, Bacteria and viruses, Copper. Filters 54¢/gal at rated life; $195 a year for 2 people.
- [LifeStraw Home 7-cup pitcher](https://whatfilterremoves.com/filters/lifestraw-home-7-cup-glass-pitcher/): $65. Certified: Lead, Chlorine, Mercury, Microplastics, Cysts, Copper. Brand-tested only: PFAS, VOCs, Bacteria and viruses. Filters 52¢/gal at rated life; $127 a year for 2 people.
- [PUR 7-cup pitcher (basic filter)](https://whatfilterremoves.com/filters/pur-7-cup-pitcher-ppt700/): —. Certified: Chlorine, Mercury, Copper. Filters —/gal at rated life; — a year for 2 people.
- [PUR Classic 11-Cup Pitcher with LED](https://whatfilterremoves.com/filters/pur-classic-11-cup-pitcher/): $30 (discontinued, last list price; closest current: PUR PLUS 11-cup pitcher). Certified: Chlorine, Mercury, Copper. Filters —/gal at rated life; — a year for 2 people.
- [PUR PLUS 11-cup pitcher](https://whatfilterremoves.com/filters/pur-plus-11-cup-pitcher/): —. Certified: PFAS, Lead, Chlorine, Mercury, Microplastics, Copper. Filters —/gal at rated life; — a year for 2 people.
- [PUR Ultimate pitcher with Lead Reduction](https://whatfilterremoves.com/filters/pur-ultimate-pitcher/): $35 (discontinued, last list price; closest current: PUR PLUS 11-cup pitcher). Certified: PFAS, Lead, Chlorine, Mercury, Microplastics, Copper. Filters —/gal at rated life; — a year for 2 people.
- [Waterdrop Elfin pitcher PT-05](https://whatfilterremoves.com/filters/waterdrop-elfin-pitcher-pt-05/): $25. Certified: Chlorine. Filters 21¢/gal at rated life; $168 a year for 2 people.
- [Waterdrop Lucid 10-cup pitcher](https://whatfilterremoves.com/filters/waterdrop-lucid-10-cup-pitcher-pt-07/): $30. Certified: Chlorine, Mercury. Brand-tested only: Copper. Filters 21¢/gal at rated life; $168 a year for 2 people.
- [ZeroWater 10-cup pitcher](https://whatfilterremoves.com/filters/zerowater-10-cup-pitcher-zp-010/): $38. Certified: PFAS, Lead, Chlorine, Chromium 6, Mercury. Brand-tested only: TDS. Filters 133¢/gal at rated life; $272 a year for 2 people.

### Dispenser
- [Brita UltraMax dispenser (Elite filter)](https://whatfilterremoves.com/filters/brita-ultramax-dispenser-elite/): $50. Certified: Lead, Chlorine, Mercury, Microplastics. Filters 17¢/gal at rated life; $40 a year for 2 people.
- [Brita UltraMax dispenser (Original filter)](https://whatfilterremoves.com/filters/brita-ultramax-dispenser-original/): $39. Certified: Chlorine, Mercury, Copper. Filters 20¢/gal at rated life; $48 a year for 2 people.
- [Epic Water Filters Pure XP dispenser](https://whatfilterremoves.com/filters/epic-pure-xp-dispenser/): $89. Certified: none we track. Brand-tested only: PFAS, Lead, Chlorine, Chloramine, Fluoride, Arsenic, Mercury, Microplastics, Cysts, VOCs, Bacteria and viruses, Copper. Filters 54¢/gal at rated life; $216 a year for 2 people.
- [PUR 44-cup dispenser (2 filters)](https://whatfilterremoves.com/filters/pur-44-cup-dispenser-pdi4000/): —. Certified: Chlorine, Mercury, Copper. Filters —/gal at rated life; — a year for 2 people.
- [PUR PLUS 30-cup dispenser](https://whatfilterremoves.com/filters/pur-plus-30-cup-dispenser-ds1811/): —. Certified: PFAS, Lead, Chlorine, Mercury, Microplastics, Copper. Filters —/gal at rated life; — a year for 2 people.
- [ZeroWater 32-cup Ready-Read dispenser](https://whatfilterremoves.com/filters/zerowater-32-cup-dispenser-zd-032-rr/): $45. Certified: PFAS, Lead, Chlorine, Chromium 6, Mercury. Brand-tested only: TDS. Filters 133¢/gal at rated life; $272 a year for 2 people.
- [ZeroWater 52-cup Ready-Read dispenser (2 filters)](https://whatfilterremoves.com/filters/zerowater-52-cup-dispenser-zd-052-rr/): $65. Certified: PFAS, Lead, Chlorine, Chromium 6, Mercury. Brand-tested only: TDS. Filters 133¢/gal at rated life; $272 a year for 2 people.

### Faucet-mount
- [Brita Elite faucet filter](https://whatfilterremoves.com/filters/brita-elite-faucet-system/): $32. Certified: Lead, Chlorine, Microplastics, VOCs. Filters 18¢/gal at rated life; $54 a year for 2 people.
- [PUR Faucet filter (basic, horizontal)](https://whatfilterremoves.com/filters/pur-faucet-pfm150w/): —. Certified: PFAS, Lead, Chlorine, Mercury, Microplastics, VOCs. Filters —/gal at rated life; — a year for 2 people.
- [PUR PLUS faucet filter](https://whatfilterremoves.com/filters/pur-plus-faucet-pfm400h/): —. Certified: PFAS, Lead, Chlorine, Mercury, Microplastics, VOCs. Filters —/gal at rated life; — a year for 2 people.

### Countertop filter
- [Alexapure Pro gravity filter (Gen 2)](https://whatfilterremoves.com/filters/alexapure-pro/): $280. Certified: none we track. Brand-tested only: PFAS, Lead, Chlorine, Chloramine, Fluoride, Arsenic, Mercury, Microplastics, Cysts, VOCs, Bacteria and viruses, Uranium. Filters 65¢/gal at rated life; $133 a year for 2 people.
- [Aquasana Clean Water Machine](https://whatfilterremoves.com/filters/aquasana-clean-water-machine-aq-cwm2/): $400. Certified: PFAS, Lead, Chlorine, Chloramine, Mercury, Microplastics, Cysts, VOCs. Filters 24¢/gal at rated life; $147 a year for 2 people.
- [Berkey Big Berkey](https://whatfilterremoves.com/filters/big-berkey/): —. Certified: Chlorine. Brand-tested only: PFAS, Chloramine, VOCs, Bacteria and viruses. Filters —/gal at rated life; — a year for 2 people.
- [Berkey Travel Berkey](https://whatfilterremoves.com/filters/travel-berkey/): —. Certified: Chlorine. Brand-tested only: PFAS, VOCs, Bacteria and viruses. Filters —/gal at rated life; — a year for 2 people.
- [Brita Hub countertop filter](https://whatfilterremoves.com/filters/brita-hub-87340/): $195. Certified: Lead, Chlorine, Chloramine, Mercury, Microplastics, VOCs. Brand-tested only: PFAS. Filters 25¢/gal at rated life; $60 a year for 2 people.
- [Culligan Scout gravity system (2.25 gal)](https://whatfilterremoves.com/filters/culligan-maxclear-scout/): $230. Certified: PFAS, Lead, Chlorine, Chloramine, Microplastics. Filters 158¢/gal at rated life; $323 a year for 2 people.
- [Culligan Venture gravity system (3 gal)](https://whatfilterremoves.com/filters/culligan-maxclear-venture/): $275. Certified: PFAS, Lead, Chlorine, Chloramine, Microplastics. Filters 158¢/gal at rated life; $323 a year for 2 people.
- [Ninja HydraSense](https://whatfilterremoves.com/filters/ninja-hydrasense/): $250. Certified: PFAS, Lead, Chlorine, Chloramine, Mercury, Microplastics, VOCs. Filters 33¢/gal at rated life; $80 a year for 2 people.
- [Waterdrop Countertop faucet filter CTF-01](https://whatfilterremoves.com/filters/waterdrop-ctf-01/): $80. Certified: Chlorine. Brand-tested only: Lead, Fluoride. Filters 0.5¢/gal at rated life; $40 a year for 2 people.
- [Waterdrop King Tank gravity filter (2.25 gal)](https://whatfilterremoves.com/filters/waterdrop-king-tank-wd-tk/): $230. Certified: none we track. Brand-tested only: Chlorine, Fluoride. Filters 1.3¢/gal at rated life; $3 a year for 2 people.

### Countertop reverse osmosis
- [AquaTru Carafe](https://whatfilterremoves.com/filters/aquatru-carafe/): $375. Certified: PFAS, Lead, Chlorine, Chloramine, Fluoride, Arsenic, Nitrate, Chromium 6, Microplastics, Cysts, VOCs, TDS, Copper. Filters —/gal at rated life; — a year for 2 people. 35 GPD, 1.7:1 pure to drain.
- [AquaTru Classic](https://whatfilterremoves.com/filters/aquatru-classic/): $475. Certified: PFAS, Lead, Chlorine, Chloramine, Fluoride, Arsenic, Nitrate, Microplastics, Cysts, VOCs, TDS, Copper. Filters —/gal at rated life; — a year for 2 people. 54 GPD, 3:1 pure to drain.
- [Bluevua RO100ROPOT](https://whatfilterremoves.com/filters/bluevua-ro100ropot/): $434. Certified: none we track. Brand-tested only: PFAS, TDS. Filters —/gal at rated life; — a year for 2 people.
- [Bluevua ROPOT-Lite](https://whatfilterremoves.com/filters/bluevua-ropot-lite/): $349. Certified: Lead, TDS. Brand-tested only: PFAS, Fluoride, Arsenic, Microplastics. Filters —/gal at rated life; $115 a year for 2 people.
- [iSpring RCD100](https://whatfilterremoves.com/filters/ispring-rcd100/): $420. Certified: none we track. Brand-tested only: PFAS, Lead, Chlorine, Fluoride, Nitrate, TDS. Filters —/gal at rated life; $118 a year for 2 people. 100 GPD, 2.5:1 pure to drain.
- [SimPure Y7P-BW](https://whatfilterremoves.com/filters/simpure-y7p-bw/): $370. Certified: none we track. Brand-tested only: PFAS, Lead, Chlorine, Fluoride, Arsenic, Nitrate, Chromium 6, Mercury, TDS, Copper. Filters —/gal at rated life; $117 a year for 2 people. 100 GPD, 4:1 pure to drain.
- [Waterdrop K19-H](https://whatfilterremoves.com/filters/waterdrop-k19-h/): $379. Certified: TDS. Brand-tested only: Lead, Chlorine, Chloramine, Fluoride, Arsenic, Nitrate, Chromium 6, Bacteria and viruses, Copper. Filters 6.3¢/gal at rated life; $70 a year for 2 people. 75 GPD, 3:1 pure to drain.

### Under-sink filter
- [A. O. Smith AO-US-200 2-Stage Under Sink](https://whatfilterremoves.com/filters/ao-smith-ao-us-200/): $140. Certified: PFAS, Lead, Chlorine, Chloramine, Mercury, Microplastics, Cysts, VOCs. Filters 17¢/gal at rated life; $168 a year for 2 people.
- [Aquasana Claryum 2-Stage](https://whatfilterremoves.com/filters/aquasana-claryum-2-stage/): $250. Certified: PFAS, Lead, Chlorine, Chloramine, Mercury, Microplastics, Cysts, VOCs. Filters 15¢/gal at rated life; $148 a year for 2 people.
- [Aquasana Claryum 2-Stage (AQ-5200)](https://whatfilterremoves.com/filters/aquasana-claryum-2-stage-aq-5200/): $200 (discontinued, last list price; closest current: Aquasana Claryum 2-Stage). Certified: PFAS, Lead, Chlorine, Chloramine, Mercury, Microplastics, Cysts, VOCs. Filters 15¢/gal at rated life; $148 a year for 2 people.
- [Aquasana Claryum 3-Stage](https://whatfilterremoves.com/filters/aquasana-claryum-3-stage/): $350. Certified: PFAS, Lead, Chlorine, Chloramine, Mercury, Microplastics, Cysts, VOCs. Filters 14¢/gal at rated life; $168 a year for 2 people.
- [Aquasana Claryum 3-Stage Max Flow](https://whatfilterremoves.com/filters/aquasana-claryum-3-stage-max-flow/): $450. Certified: PFAS, Lead, Chlorine, Chloramine, Mercury, Microplastics, Cysts, VOCs. Filters 11¢/gal at rated life; $184 a year for 2 people.
- [Aquasana Claryum Direct Connect](https://whatfilterremoves.com/filters/aquasana-claryum-direct-connect/): $250. Certified: PFAS, Lead, Chlorine, Chloramine, Mercury, Microplastics, Cysts, VOCs. Filters 12¢/gal at rated life; $184 a year for 2 people.
- [Clearly Filtered 3-Stage Under the Sink](https://whatfilterremoves.com/filters/clearly-filtered-3-stage-under-sink/): $550. Certified: Chlorine. Brand-tested only: PFAS, Lead, Fluoride, Arsenic, Microplastics, VOCs. Filters 23¢/gal at rated life; $455 a year for 2 people.
- [Frizzlife MK99](https://whatfilterremoves.com/filters/frizzlife-mk99/): $70. Certified: Lead, Chlorine, Cysts. Filters 2.5¢/gal at rated life; $40 a year for 2 people.
- [Frizzlife SK99](https://whatfilterremoves.com/filters/frizzlife-sk99/): $126. Certified: Lead, Chlorine, Cysts. Brand-tested only: Chloramine, Fluoride, Mercury, VOCs. Filters —/gal at rated life; $105 a year for 2 people.
- [Multipure Aqualuxe](https://whatfilterremoves.com/filters/multipure-aqualuxe/): $1,325. Certified: PFAS, Lead, Chlorine, Chloramine, Arsenic, Mercury, Microplastics, Cysts, VOCs, Bacteria and viruses. Filters 36¢/gal at rated life; $74 a year for 2 people.
- [Multipure Aquaperform](https://whatfilterremoves.com/filters/multipure-aquaperform/): $765. Certified: PFAS, Lead, Chlorine, Chloramine, Arsenic, Mercury, Microplastics, Cysts, VOCs. Filters 25¢/gal at rated life; $51 a year for 2 people.
- [Multipure Aquapremier](https://whatfilterremoves.com/filters/multipure-aquapremier/): $965. Certified: PFAS, Lead, Chlorine, Chloramine, Arsenic, Mercury, Microplastics, Cysts, VOCs, Bacteria and viruses. Filters 53¢/gal at rated life; $108 a year for 2 people.
- [Multipure Aquaversa](https://whatfilterremoves.com/filters/multipure-aquaversa/): $620. Certified: Lead, Chlorine, Chloramine, Mercury, Microplastics, Cysts, VOCs. Brand-tested only: PFAS. Filters 13¢/gal at rated life; $95 a year for 2 people.
- [Pentair Everpure H-1200](https://whatfilterremoves.com/filters/pentair-everpure-h-1200/): —. Certified: PFAS, Lead, Chlorine, Chloramine, Microplastics, Cysts, VOCs. Filters —/gal at rated life; — a year for 2 people.
- [Pentair Everpure H-300-NXT](https://whatfilterremoves.com/filters/pentair-everpure-h-300-nxt/): —. Certified: Lead, Chlorine, Microplastics, Cysts. Filters —/gal at rated life; — a year for 2 people.
- [Waterdrop 10UA](https://whatfilterremoves.com/filters/waterdrop-10ua/): $59. Certified: Chlorine. Brand-tested only: Mercury. Filters 0.3¢/gal at rated life; $31 a year for 2 people.
- [Waterdrop 15UC](https://whatfilterremoves.com/filters/waterdrop-15uc/): $60. Certified: Chlorine. Filters 0.2¢/gal at rated life; $15 a year for 2 people.

### Under-sink reverse osmosis
- [A. O. Smith Direct Flow RO AOS-DFRO800](https://whatfilterremoves.com/filters/ao-smith-aos-dfro800/): $575. Certified: TDS. Brand-tested only: Chlorine. Filters 40¢/gal at rated life; $292 a year for 2 people. 800 GPD, 1.78:1 pure to drain.
- [A. O. Smith RO with Microbial Boost AO-US-RO-MB-4000](https://whatfilterremoves.com/filters/ao-smith-ao-us-ro-mb-4000/): —. Certified: PFAS, Lead, Chlorine, Chloramine, Fluoride, Arsenic, Chromium 6, Mercury, Cysts, VOCs, TDS, Copper. Filters 37¢/gal at rated life; $270 a year for 2 people. 11.64 GPD, ?:1 pure to drain.
- [APEC RO-PERM](https://whatfilterremoves.com/filters/apec-ro-perm/): $370. Certified: none we track. Brand-tested only: Lead, Fluoride, Arsenic, Bacteria and viruses. Filters —/gal at rated life; $80 a year for 2 people. 90 GPD, ?:1 pure to drain.
- [APEC ROES-50](https://whatfilterremoves.com/filters/apec-roes-50/): $231. Certified: TDS. Filters —/gal at rated life; $100 a year for 2 people. 50 GPD, 0.34:1 pure to drain.
- [APEC ROES-PH75](https://whatfilterremoves.com/filters/apec-roes-ph75/): $269. Certified: TDS. Filters —/gal at rated life; — a year for 2 people. 75 GPD, 0.66:1 pure to drain.
- [APEC ROES-UV75-SS](https://whatfilterremoves.com/filters/apec-roes-uv75-ss/): $280. Certified: none we track. Brand-tested only: Lead, Fluoride, Arsenic, Cysts, Bacteria and viruses. Filters —/gal at rated life; — a year for 2 people. 75 GPD, ?:1 pure to drain.
- [APEC ROTL-A1000](https://whatfilterremoves.com/filters/apec-rotl-a1000/): $599. Certified: PFAS, TDS. Brand-tested only: Lead, Chlorine, Arsenic. Filters —/gal at rated life; $194 a year for 2 people. 1000 GPD, 2:1 pure to drain.
- [Aquasana OptimH2O RO](https://whatfilterremoves.com/filters/aquasana-optimh2o-ro/): — (discontinued, last list price; closest current: Aquasana SmartFlow RO). Certified: PFAS, Lead, Chlorine, Chloramine, Fluoride, Arsenic, Nitrate, Chromium 6, Mercury, Microplastics, Cysts, VOCs, TDS, Copper. Filters —/gal at rated life; $285 a year for 2 people.
- [Aquasana SmartFlow RO](https://whatfilterremoves.com/filters/aquasana-smartflow-ro/): $480. Certified: PFAS, Lead, Chlorine, Chloramine, Fluoride, Arsenic, Nitrate, Chromium 6, Mercury, Microplastics, Cysts, VOCs, TDS, Copper. Filters —/gal at rated life; $321 a year for 2 people. 25.7 GPD, 0.38:1 pure to drain.
- [Brondell Circle RC100](https://whatfilterremoves.com/filters/brondell-circle-rc100/): $450. Certified: Lead, Chlorine, Fluoride, Arsenic, Chromium 6, Cysts, VOCs, TDS, Copper. Filters —/gal at rated life; $214 a year for 2 people. 40 GPD, 0.5:1 pure to drain.
- [Express Water RO5DX](https://whatfilterremoves.com/filters/express-water-ro5dx/): $190. Certified: TDS. Brand-tested only: Lead, Chlorine, Fluoride, Arsenic, Nitrate. Filters —/gal at rated life; — a year for 2 people. 50 GPD, 0.33:1 pure to drain.
- [Frizzlife PD600-TAM3](https://whatfilterremoves.com/filters/frizzlife-pd600-tam3/): $470. Certified: none we track. Brand-tested only: PFAS, Lead, Chlorine, Fluoride, Arsenic, Nitrate, Chromium 6, Mercury, TDS, Copper. Filters —/gal at rated life; — a year for 2 people. 600 GPD, 2:1 pure to drain.
- [Frizzlife PD800-TAM4](https://whatfilterremoves.com/filters/frizzlife-pd800-tam4/): $650. Certified: none we track. Brand-tested only: PFAS, Lead, Chlorine, Fluoride, Arsenic, Nitrate, Chromium 6, Mercury, TDS, Copper. Filters 12¢/gal at rated life; $111 a year for 2 people. 800 GPD, 2:1 pure to drain.
- [iSpring RCC7AK](https://whatfilterremoves.com/filters/ispring-rcc7ak/): $240. Certified: TDS. Brand-tested only: PFAS, Lead, Fluoride, Copper. Filters —/gal at rated life; $242 a year for 2 people. 75 GPD, ?:1 pure to drain.
- [iSpring RCC7P-AK](https://whatfilterremoves.com/filters/ispring-rcc7p-ak/): $378. Certified: none we track. Brand-tested only: PFAS, Lead, Chlorine, Fluoride, Arsenic. Filters —/gal at rated life; $245 a year for 2 people. 75 GPD, 1.5:1 pure to drain.
- [iSpring RO500AK-BN](https://whatfilterremoves.com/filters/ispring-ro500ak-bn/): $693. Certified: TDS. Brand-tested only: Lead, Chlorine, Fluoride, Arsenic. Filters —/gal at rated life; $198 a year for 2 people. 500 GPD, 2:1 pure to drain.
- [SimPure T1-400](https://whatfilterremoves.com/filters/simpure-t1-400/): $350. Certified: none we track. Brand-tested only: PFAS, Lead, Chlorine, Fluoride, Arsenic, Nitrate, Chromium 6, Mercury, TDS, Copper. Filters —/gal at rated life; $190 a year for 2 people. 400 GPD, 1.5:1 pure to drain.
- [Waterdrop D6](https://whatfilterremoves.com/filters/waterdrop-d6/): $427. Certified: none we track. Brand-tested only: PFAS, Lead, Chlorine, Fluoride, Arsenic, Nitrate, Cysts, TDS. Filters —/gal at rated life; — a year for 2 people. 600 GPD, 2:1 pure to drain.
- [Waterdrop G2P600](https://whatfilterremoves.com/filters/waterdrop-g2p600/): $380. Certified: none we track. Brand-tested only: PFAS, Lead, Fluoride, Arsenic, Nitrate, Chromium 6, TDS. Filters 5.8¢/gal at rated life; $82 a year for 2 people. 600 GPD, 2:1 pure to drain.
- [Waterdrop G3P600](https://whatfilterremoves.com/filters/waterdrop-g3p600/): $539. Certified: PFAS, Lead, Chlorine, Fluoride, TDS. Brand-tested only: Arsenic, Chromium 6. Filters 13¢/gal at rated life; $147 a year for 2 people. 600 GPD, 2:1 pure to drain.
- [Waterdrop G3P800](https://whatfilterremoves.com/filters/waterdrop-g3p800/): $999. Certified: PFAS, Lead, Chlorine, Fluoride, TDS. Brand-tested only: VOCs. Filters 13¢/gal at rated life; $161 a year for 2 people. 800 GPD, 3:1 pure to drain.
- [Waterdrop X16](https://whatfilterremoves.com/filters/waterdrop-x16/): $1,999. Certified: Chlorine, TDS. Brand-tested only: PFAS, Lead, Fluoride, Arsenic, Chromium 6. Filters —/gal at rated life; — a year for 2 people. 1600 GPD, 3:1 pure to drain.

### Whole-house
- [3M Aqua-Pure (Solventum) AP903 whole-house](https://whatfilterremoves.com/filters/3m-aqua-pure-ap903/): —. Certified: Chlorine. Filters —/gal at rated life; — a year for 2 people.
- [Aquasana HealthShield whole-house](https://whatfilterremoves.com/filters/aquasana-healthshield-wh-hs/): $4,198. Certified: PFAS, VOCs. Brand-tested only: Chlorine, Chloramine. Filters —/gal at rated life; $2,045 a year for 2 people.
- [Aquasana Rhino + Salt-Free Water Conditioner](https://whatfilterremoves.com/filters/aquasana-rhino-salt-free-wh-1000-cs/): $3,546. Certified: none we track. Brand-tested only: Chlorine. Filters —/gal at rated life; $641 a year for 2 people.
- [Aquasana Rhino Chloramines whole-house](https://whatfilterremoves.com/filters/aquasana-rhino-chloramines-wh-1011/): $2,798. Certified: none we track. Brand-tested only: Chlorine, Chloramine. Filters —/gal at rated life; $556 a year for 2 people.
- [Aquasana Rhino Max Flow whole-house](https://whatfilterremoves.com/filters/aquasana-rhino-max-flow-wh-1010/): $2,798. Certified: none we track. Brand-tested only: Chlorine. Filters —/gal at rated life; $556 a year for 2 people.
- [Aquasana Rhino whole-house (1M gal)](https://whatfilterremoves.com/filters/aquasana-rhino-wh-1000/): $1,998. Certified: none we track. Brand-tested only: PFAS, Chlorine, VOCs. Filters —/gal at rated life; $486 a year for 2 people.
- [Express Water WH300SCKS 3-stage heavy-metal whole-house](https://whatfilterremoves.com/filters/express-water-wh300scks/): $548. Certified: none we track. Brand-tested only: Lead, Chlorine, Chloramine, Iron. Filters 0.2¢/gal at rated life; $187 a year for 2 people.
- [iSpring WGB21B 2-stage whole-house](https://whatfilterremoves.com/filters/ispring-wgb21b/): $183. Certified: none we track. Brand-tested only: Chlorine. Filters 0.1¢/gal at rated life; $116 a year for 2 people.
- [iSpring WGB21B-PF PFAS whole-house](https://whatfilterremoves.com/filters/ispring-wgb21b-pf/): $326. Certified: none we track. Brand-tested only: PFAS, Chlorine, VOCs. Filters 0.3¢/gal at rated life; $280 a year for 2 people.
- [iSpring WGB32B whole-house](https://whatfilterremoves.com/filters/ispring-wgb32b/): $517. Certified: none we track. Brand-tested only: Chlorine. Filters 0.2¢/gal at rated life; $195 a year for 2 people.
- [SpringWell CF1 whole-house](https://whatfilterremoves.com/filters/springwell-cf1/): $1,365. Certified: none we track. Brand-tested only: PFAS, Chlorine, Chloramine. Filters —/gal at rated life; — a year for 2 people.
- [SpringWell CSF1 filter + FutureSoft salt-free](https://whatfilterremoves.com/filters/springwell-csf1/): $2,730. Certified: none we track. Brand-tested only: PFAS, Chlorine, Chloramine, VOCs. Filters —/gal at rated life; — a year for 2 people.
- [SpringWell Lead & Cyst Removal System](https://whatfilterremoves.com/filters/springwell-lcr-1/): $3,220. Certified: PFAS, Lead, Cysts. Brand-tested only: Chlorine, Chloramine, VOCs. Filters 0.5¢/gal at rated life; $458 a year for 2 people.
- [SpringWell PFAS Water Filter System](https://whatfilterremoves.com/filters/springwell-pfs-1/): $3,424. Certified: none we track. Brand-tested only: PFAS. Filters —/gal at rated life; — a year for 2 people.
- [US Water Systems Matrixx catalytic carbon backwashing](https://whatfilterremoves.com/filters/us-water-matrixx-catalytic-carbon/): $2,209. Certified: none we track. Brand-tested only: Chlorine, Chloramine, VOCs. Filters —/gal at rated life; $79 a year for 2 people.
- [Waterdrop WHF21-FG iron & manganese whole-house](https://whatfilterremoves.com/filters/waterdrop-whf21-fg/): $200. Certified: none we track. Brand-tested only: Chlorine, Iron. Filters —/gal at rated life; $160 a year for 2 people.
- [Waterdrop WHF3T-PG whole-house](https://whatfilterremoves.com/filters/waterdrop-whf3t-pg/): $370. Certified: none we track. Brand-tested only: Chlorine. Filters 0.1¢/gal at rated life; $119 a year for 2 people.

## Data
- All filters as JSON: https://whatfilterremoves.com/filters.json
- New and announced filters: https://whatfilterremoves.com/new-water-filters/
- Discontinued filters and their replacements: https://whatfilterremoves.com/discontinued-water-filters/
- Methodology: https://whatfilterremoves.com/methodology/