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What Filter Removes

Which water filters remove 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.

The EPA MRDL for chloramine in public drinking water is 4 mg/L as Cl2.

Source note

MRDL 4.0; MRDLG 4. epa.gov

Lowest-priced certified filter, by type

Countertop filter

Brita Hub countertop filter

$195 to buy · $60/yr for 2 · NSF/ANSI 42

Check price at Brita →

Countertop reverse osmosis

AquaTru Carafe

$375 to buy · NSF/ANSI 42

Check price at AquaTru →

Under-sink filter

A. O. Smith AO-US-200 2-Stage Under Sink

$140 to buy · $168/yr for 2 · NSF/ANSI 42

Check price on Amazon →

Under-sink reverse osmosis

Aquasana SmartFlow RO

$480 to buy · $321/yr for 2 · NSF/ANSI 42

Check price on Amazon →

Certified to reduce chloramine (19)

Each row is a certifier listing for this exact product with chloramine 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.

FilterTypeListingPriceFilters a year
A. O. Smith AO-US-200 2-Stage Under Sink Under-sink filter WQA, NSF/ANSI 42 $140 $168 Check price on Amazon
Brita Hub countertop filter Countertop filter WQA, NSF/ANSI 42 $195 $60 Check price at Brita
Culligan Scout gravity system (2.25 gal) Countertop filter IAPMO R&T, NSF/ANSI 42 $230 $323 Check price on Amazon
Aquasana Claryum 2-Stage Under-sink filter WQA, NSF/ANSI 42 $250 $148 Check price on Amazon
Aquasana Claryum Direct Connect Under-sink filter IAPMO R&T, NSF/ANSI 42 $250 $184 Check price on Amazon
Ninja HydraSense Countertop filter IAPMO R&T, NSF/ANSI 42 $250 $80 Check price on Amazon
Culligan Venture gravity system (3 gal) Countertop filter IAPMO R&T, NSF/ANSI 42 $275 $323 Check price on Amazon
Aquasana Claryum 3-Stage Under-sink filter WQA, NSF/ANSI 42 $350 $168 Check price on Amazon
AquaTru Carafe Countertop reverse osmosis IAPMO R&T, NSF/ANSI 42 $375 — Check price at AquaTru
Aquasana Clean Water Machine Countertop filter WQA, NSF/ANSI 42 $400 $147 Check price on Amazon
Aquasana Claryum 3-Stage Max Flow Under-sink filter WQA, NSF/ANSI 42 $450 $184 Check price on Amazon
AquaTru Classic Countertop reverse osmosis IAPMO R&T, NSF/ANSI 42 $475 — Check price on Amazon
Aquasana SmartFlow RO Under-sink reverse osmosis WQA, NSF/ANSI 42 $480 $321 Check price on Amazon
Multipure Aquaversa Under-sink filter NSF, NSF/ANSI 42 $620 $95 Check price at Multipure
Multipure Aquaperform Under-sink filter NSF, NSF/ANSI 42 $765 $51 Check price at Multipure
Multipure Aquapremier Under-sink filter NSF, NSF/ANSI 42 $965 $108 Check price at Multipure
Multipure Aqualuxe Under-sink filter NSF, NSF/ANSI 42 $1,325 $74 Check price at Multipure
A. O. Smith RO with Microbial Boost AO-US-RO-MB-4000 Under-sink reverse osmosis IAPMO R&T, NSF/ANSI 42 — $270 Check price at A. O. Smith
Pentair Everpure H-1200 Under-sink filter NSF, NSF/ANSI 42 — — Check price on Amazon

Brand tests only, not certified (14)

These brands cite a lab report for chloramine, 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.

No chloramine claim (63 filters)

Best water filters for chloramine, ranked by first-year cost →

Common questions

Which water filters remove 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.

Is there a legal limit for chloramine in tap water?

The EPA MRDL for chloramine in public drinking water is 4 mg/L as Cl2. NSF lists chloramine among NSF/ANSI 42 aesthetic claims. NSF's claims guide lists faucet, countertop, under-sink and RO products for chloramine.

How do I know a filter really removes chloramine?

Look it up in the certifier's public database (NSF, WQA, IAPMO or CSA) under the exact model, and check that chloramine is in its list of reduction claims (usually under NSF/ANSI 42). "Tested to NSF standards" in an ad is not the same as a listing.