NSF Water Filter Check

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Under-sink filters NSF-certified to reduce Arsenic (pentavalent)

Of the 13 models we track, 5 have a arsenic (pentavalent) reduction claim on NSF's public listing.

ModelStandard(s) with this claimType
Multipure AquaperformNSF/ANSI 53Carbon block
Multipure AqualuxeNSF/ANSI 53Carbon block
Multipure AquapremierNSF/ANSI 53Carbon block
Pentair GRO-575BNSF/ANSI 58RO
A.O. Smith AORO-50NSF/ANSI 58RO

Not listed for this claim: Multipure Aquaversa, Everpure H-1200, Everpure H-300, Everpure H-104, iSpring RCC7AK-BN, iSpring RO500AK-BN (tankless), Express Water RO5DX, Express Water RO10DX.

Arsenic claims on NSF listings apply only to pentavalent arsenic at the referenced concentration; NSF notes these products are intended for water shown to be at or below that level.

Not health advice. To know what is in your water, check your utility's Consumer Confidence Report or use a certified lab.