Water filters certified to remove Chromium-6
'Erin Brockovich' chemical. Carcinogenic when ingested. No federal MCL specific to Cr6 (regulated under total chromium); CA has a 10 ppb limit.
"Certified" means the model is listed in the NSF, WQA, or IAPMO public database as reducing Chromium-6 — not just "tested to" a standard.
Pick the path that fits you
You can start cheap with a no-install filter, or solve it permanently with an installed system that costs far less per gallon over time. Both options below are certified to reduce Chromium-6.
Prices shown are as of August 20, 2026 and may change — check Amazon for the current price. As an Amazon Associate we earn from qualifying purchases; some links are affiliate links and we may earn a commission at no extra cost to you. Disclosure.
Top certified picks with prices
Prices shown are as of August 20, 2026 and may change — check Amazon for the current price. As an Amazon Associate we earn from qualifying purchases; some links are affiliate links and we may earn a commission at no extra cost to you. Disclosure.
23 consumer filters certified to remove Chromium-6
Recognizable brands worth shopping. (113 models are certified in total, including commercial, dealer-installed, and OEM units — see the full registry.)
| Filter | Type | Capacity | Price | ¢/gal | |
|---|---|---|---|---|---|
Pentair GRO-350B NSF | REVERSE OSMOSIS | 750 gal | $37.9 | 5.1 | Buy |
Pentair GRO-475B NSF | REVERSE OSMOSIS | 750 gal | $37.9 | 5.1 | Buy |
Pentair GRO-475BP NSF | REVERSE OSMOSIS | 750 gal | $37.9 | 5.1 | Buy |
3M 3MRO301 NSF | REVERSE OSMOSIS | 1,500 gal | $659.99 | 13.8 | Buy |
3M 3MRO401 NSF | REVERSE OSMOSIS | 1,500 gal | $46.36 | 13.8 | Buy |
Pentair GRO-575B NSF | REVERSE OSMOSIS | 675 gal | $809 | 13.8 | Buy |
GE GNRQ18NBN NSF | REVERSE OSMOSIS | 260 gal | $63.87 | 24.6 | Buy |
GE GXRQ18NBN NSF/IAPMO | REVERSE OSMOSIS | 260 gal | $65 | 24.6 | Buy |
GE GXRV40TBN NSF/IAPMO | REVERSE OSMOSIS | 260 gal | $63.87 | 24.6 | Buy |
Geekpure ERO-175 NSF | REVERSE OSMOSIS | 3,850 gal | $37.99 | — | Buy |
iSpring HERO-385PLUS NSF | REVERSE OSMOSIS | 4,500 gal | $339.6 | — | Buy |
Pentair OmniFilter RO2050 NSF | REVERSE OSMOSIS | 1 gal | $21.69 | — | Buy |
A.O. Smith AORO-50 NSF | REVERSE OSMOSIS | — | $83.99 | — | Buy |
Geekpure M9 3HA RO 100GPD NSF | REVERSE OSMOSIS | — | $45.11 | — | Buy |
Geekpure M9 3HA RO 75GPD NSF | REVERSE OSMOSIS | — | $157.99 | — | Buy |
APEC M9 4HA RO 50GPD NSF | REVERSE OSMOSIS | — | $79.99 | — | Buy |
APEC M9 4SS RO 50GPD NSF | REVERSE OSMOSIS | — | $79.99 | — | Buy |
APEC M9 5HA RO 50GPD NSF | REVERSE OSMOSIS | — | $79.99 | — | Buy |
Geekpure M9 5HA RO 75GPD NSF | REVERSE OSMOSIS | — | $157.99 | — | Buy |
Pentair RO-2550 NSF | REVERSE OSMOSIS | — | $17.22 | — | Buy |
Brita Pro BPLRO-35 NSF | REVERSE OSMOSIS | — | — | — | |
Pentair Everpure Residential ROM IV NSF | REVERSE OSMOSIS | — | — | — | |
Maytag DRINKING WATER SYSTEM MODEL M-550 NSF | REVERSE OSMOSIS | — | — | — |