Is Berkey NSF certified?

Last reviewed July 2026.

Certified, yes — but not for lead. Berkey 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

Phoenix Gravity New Millennium Edition: Listed under New Millennium Concepts Ltd to NSF/ANSI 42 ONLY — chlorine reduction and taste/odor. There is no NSF/ANSI 53 listing, so there is no certified lead or health claim. The widely-sold Black Berkey element is not listed at all; the certification attaches to the newer Phoenix element.

What those standard numbers mean

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

Verify it yourself: every Berkey 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.

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

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.