Is Clearly Filtered NSF certified?

Last reviewed July 2026.

Certified, yes — but not for lead. Clearly Filtered appears in the public certified listings (NSF), which is real. But the certification covers NSF/ANSI 42 only: chlorine, taste and odour. There is no NSF/ANSI 53 listing, and 53 is the standard that covers lead and the other health-effect contaminants. A filter can be genuinely certified and still carry no certified lead claim. This is one of them.

What the listing actually says

CF-Pitcher: NSF lists Clearly Filtered's "Filtered Water Pitcher" (and its "Pitcher Replacement Filter") under NSF/ANSI 42 for chlorine reduction and taste and odour reduction, 100 gallons, and to NSF/ANSI/CAN 372 for lead-free materials (NSF listing, company search, read 2026-09-27). There is no NSF/ANSI 53 or 401 listing, so its lead, PFAS and fluoride reduction claims rest on independent lab reports, not on an accredited certification. A trade-name search of the same database returns nothing, which is why a check on 2026-07-13 recorded it as not listed.

The lead claim, model by model

CF-Pitcher: NSF lists the pitcher under NSF/ANSI 42 only. Clearly Filtered's lead claim rests on independent lab reports, not a certification. Source: NSF listing, Clearly Filtered, read 2026-09-27.

What those standard numbers mean

• NSF/ANSI 42 — aesthetic effects (chlorine, taste and odour). Not a health claim.

Verify it yourself: every Clearly Filtered row above links the certifier's own listing. If a number here disagrees with the listing, the listing wins — tell us and we'll fix it.

What does have a certified lead claim

Ranked by cost per certified gallon — the only fair way to compare a $20 pitcher filter with a $50 fridge cartridge. Every one below holds a certified lead claim with an accredited certifier, and the listing is public.

See how Clearly Filtered ranks on cost per certified gallon against every filter we track →

Related: Does Clearly Filtered remove lead? · Does Clearly Filtered remove PFAS?

We do not test filters — we index what accredited certifiers publish, with attribution, and make no health or treatment claims. A certification covers a specific model against a specific standard; it is not a general seal of quality. We are not affiliated with NSF International.

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