Which water filters remove chlorine?
53 of the 96 current 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.
The EPA MRDL for chlorine in public drinking water is 4 mg/L as Cl2. Maximum Residual Disinfectant Level (MRDL) 4.0; MRDLG 4. epa.gov Source note
Lowest-priced certified filter, by type
Pitcher
Brita Denali 6-cup pitcher (Original filter)$23 to buy · $48/yr for 2 · NSF/ANSI 42
Check price on Amazon →Dispenser
Brita UltraMax dispenser (Original filter)$39 to buy · $48/yr for 2 · NSF/ANSI 42
Check price on Amazon →Faucet-mount
Brita Elite faucet filter$32 to buy · $54/yr for 2 · NSF/ANSI 42
Check price on Amazon →Countertop filter
Waterdrop Countertop faucet filter CTF-01$80 to buy · $40/yr for 2 · NSF/ANSI 42
Check price on Amazon →Under-sink reverse osmosis
Brondell Circle RC100$450 to buy · $214/yr for 2 · NSF/ANSI 42
Check price at Brondell →Whole-house
3M Aqua-Pure (Solventum) AP903 whole-house— to buy · NSF/ANSI 42
Check price on Amazon →Certified to reduce chlorine (53)
Each row is a certifier listing for this exact product with chlorine in its reduction claims; the listing is linked. Yearly cost is replacement filters (plus drain water for RO) for 2 people, from each brand's filter prices and ratings.
Brand tests only, not certified (34)
These brands cite a lab report for chlorine, but no certifier lists the claim for the product. A lab report can be real; it is not an independent, ongoing certification with factory audits.
- A. O. Smith Direct Flow RO AOS-DFRO800 (Under-sink reverse osmosis) · A. O. Smith (own test to NSF/ANSI 42, per PDS)
- Alexapure Pro gravity filter (Gen 2) (Countertop filter) · BCS Laboratories (ISO/IEC 17025, NELAP) and IAPMO R&T testing, per brand report SRT 0826 (Aug 21, 2026)
- APEC ROTL-A1000 (Under-sink reverse osmosis) · APEC (brand: 'tested by official 3rd party laboratory', not named)
- Aquasana HealthShield whole-house (Whole-house) · Aquasana internal testing ('WQA did not evaluate chlorine or chloramine reduction')
- Aquasana Rhino + Salt-Free Water Conditioner (Whole-house) · Unnamed independent lab, 'tested to NSF/ANSI Standard 42' (not certified)
- Aquasana Rhino Chloramines whole-house (Whole-house) · Unnamed independent lab, 'independently tested to NSF/ANSI Standard 42' (not certified)
- Aquasana Rhino Max Flow whole-house (Whole-house) · Unnamed independent lab, 'independently tested according to NSF/ANSI Standard 42' (not certified)
- Aquasana Rhino whole-house (1M gal) (Whole-house) · Unnamed independent lab, 'tested to NSF/ANSI Standard 42' (not certified)
- Epic Water Filters Pure XP dispenser (Dispenser) · Two unnamed independent accredited labs (brand PDS, lab testing dated 2026-07-27)
- Epic Water Filters Pure XP pitcher (Pitcher) · Two unnamed independent accredited labs (brand PDS, lab testing dated 2026-07-27)
- Express Water RO5DX (Under-sink reverse osmosis) · Express Water (brand claim, no tester named)
- Express Water WH300SCKS 3-stage heavy-metal whole-house (Whole-house) · Brand claim (no lab named)
- Frizzlife PD600-TAM3 (Under-sink reverse osmosis) · SGS (per Frizzlife leaflet; tested to NSF/ANSI 42/53/58 methods)
- Frizzlife PD800-TAM4 (Under-sink reverse osmosis) · SGS (per Frizzlife leaflet; tested to NSF/ANSI 42/53/58 methods)
- Hydros 64 oz glass pitcher (Pitcher) · Brand claim ('rated NSF 42 / Class 1'; lab not named, no report published)
- iSpring RCC7P-AK (Under-sink reverse osmosis) · iSpring (brand claim; says products tested annually)
- iSpring RCD100 (Countertop reverse osmosis) · SGS (test report XMF23-008713-01, per iSpring)
- iSpring RO500AK-BN (Under-sink reverse osmosis) · iSpring (brand claim, no tester named)
- iSpring WGB21B 2-stage whole-house (Whole-house) · Brand claim (no lab named)
- iSpring WGB21B-PF PFAS whole-house (Whole-house) · Brand claim
- iSpring WGB32B whole-house (Whole-house) · Unnamed independent third party, 'to meet NSF/ANSI standards' (standard not specified)
- LARQ Pitcher 2 (Pitcher) · Unnamed independent lab, NSF/ANSI 42 protocol
- LARQ Pitcher PureVis (Pitcher) · Unnamed independent lab, NSF/ANSI 42 protocol
- SimPure T1-400 (Under-sink reverse osmosis) · SGS-CSTC Ningbo (report NBF23-0005815-01, 2023, client Membrane Solutions)
- SimPure Y7P-BW (Countertop reverse osmosis) · SGS-CSTC Ningbo (report NBF22-010777-02, 2022, client Membrane Solutions)
- SpringWell CF1 whole-house (Whole-house) · Brand claim (no lab named, no report linked on product page)
- SpringWell CSF1 filter + FutureSoft salt-free (Whole-house) · Brand claim (no lab named, no report linked)
- SpringWell Lead & Cyst Removal System (Whole-house) · Independent lab + manufacturer internal data ('not performance tested by IAPMO or NSF')
- US Water Systems Matrixx catalytic carbon backwashing (Whole-house) · Brand claim (no lab named)
- Waterdrop D6 (Under-sink reverse osmosis) · Waterdrop (brand claim, no tester named)
- Waterdrop K19-H (Countertop reverse osmosis) · Unnamed third-party laboratory (per brand)
- Waterdrop King Tank gravity filter (2.25 gal) (Countertop filter) · Brand says 'Tested by a third-party laboratory' (lab not named)
- Waterdrop WHF21-FG iron & manganese whole-house (Whole-house) · Unnamed third-party laboratory ('initial filtration values')
- Waterdrop WHF3T-PG whole-house (Whole-house) · Unnamed third-party laboratory
No chlorine claim (9 filters)
Common questions
Which water filters remove chlorine?
53 of the 96 current 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.
Is there a legal limit for chlorine in tap water?
The EPA MRDL for chlorine in public drinking water is 4 mg/L as Cl2. Added intentionally by utilities to control pathogens. EPA WaterSense guide points to NSF/ANSI 42 for chlorine taste/odor. CDC notes removing disinfectant with whole-home filtration may let germs grow in plumbing.
How do I know a filter really removes chlorine?
Look it up in the certifier's public database (NSF, WQA, IAPMO or CSA) under the exact model, and check that chlorine is in its list of reduction claims (usually under NSF/ANSI 177 or 42). "Tested to NSF standards" in an ad is not the same as a listing.