Water filters certified to remove Barium
MCL 2 mg/L. Elevated blood pressure with long exposure. Naturally occurring.
"Certified" means the model is listed in the NSF, WQA, or IAPMO public database as reducing Barium — 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 Barium.
Amazon prices as of October 20, 2026 at 2:01 PM ET. Prices can change; the price on Amazon is the one that counts. 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 on Amazon
Amazon prices as of October 20, 2026 at 2:01 PM ET. Prices can change; the price on Amazon is the one that counts. 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.
69 consumer filters certified to remove Barium
Recognizable brands worth shopping. (455 models are certified in total, including commercial, dealer-installed, and OEM units — see the full registry.)
| Filter | Type | Capacity | Price | ¢/gal | |
|---|---|---|---|---|---|
GE GXRQ18NBN NSF/IAPMO | REVERSE OSMOSIS | 260 gal | $229.98 | 24.6 | Check price |
GE GXRV40TBN NSF/IAPMO | REVERSE OSMOSIS | 260 gal | $229.21 | 24.6 | Check price |
Pentair OmniFilter RO2050 NSF | REVERSE OSMOSIS | 1 gal | $154.57 | — | Check price |
iSpring RCC7-BLK NSF | REVERSE OSMOSIS | — | $215.99 | — | Check price |
iSpring RCC7-BN NSF | REVERSE OSMOSIS | — | $197.99 | — | Check price |
iSpring RCC7AK-BLK NSF | REVERSE OSMOSIS | — | $211.49 | — | Check price |
iSpring RCC7AK-BN NSF | REVERSE OSMOSIS | — | $211.49 | — | Check price |
iSpring RCC7AK-UVBLK NSF | REVERSE OSMOSIS | — | $354.99 | — | Check price |
iSpring RCC7AK-UVBN NSF | REVERSE OSMOSIS | — | $296.99 | — | Check price |
iSpring RCC7UV NSF | REVERSE OSMOSIS | — | $319.99 | — | Check price |
APEC RO-90 WQA | REVERSE OSMOSIS | 33.3 gal | $209.99 | — | Check price |
APEC RO-PH90 WQA | REVERSE OSMOSIS | 33.3 gal | $299.99 | — | Check price |
Brondell RC250 WQA | REVERSE OSMOSIS | 300 gal | $329.99 | — | Check price |
Pentair GRO-350B NSF | REVERSE OSMOSIS | 750 gal | — | 5.7 | |
Pentair GRO-475B NSF | REVERSE OSMOSIS | 750 gal | — | 5.7 | |
Pentair GRO-475BP NSF | REVERSE OSMOSIS | 750 gal | — | 5.7 | |
3M 3MRO301 NSF | REVERSE OSMOSIS | 1,500 gal | — | 13.8 | |
3M 3MRO401 NSF | REVERSE OSMOSIS | 1,500 gal | — | 13.8 | |
GE GNRQ18NBN NSF | REVERSE OSMOSIS | 260 gal | — | 24.6 | |
Geekpure ERO-175 NSF | REVERSE OSMOSIS | 3,850 gal | — | — | |
iSpring HERO-385PLUS NSF | REVERSE OSMOSIS | 4,500 gal | — | — | |
GE GXMH31H NSF | WHOLE-HOUSE | 570,000 gal | — | — | |
Pentair GRO-575B NSF | REVERSE OSMOSIS | 675 gal | — | — | |
GE GXSF30V NSF | WHOLE-HOUSE | — | — | — | |
GE GXSH40V NSF | WHOLE-HOUSE | — | — | — | |
GE GXSH45V NSF | WHOLE-HOUSE | — | — | — | |
GE GXSHC40N NSF | WHOLE-HOUSE | — | — | — | |
Ecodyne IDP30S NSF | WHOLE-HOUSE | — | — | — | |
Waterboss ProSeries 51PS-B NSF | WHOLE-HOUSE | — | — | — | |
A.O. Smith AORO-50 NSF | REVERSE OSMOSIS | — | — | — | |
Brita Pro BPLRO-35 NSF | REVERSE OSMOSIS | — | — | — | |
Geekpure M9 3HA RO 100GPD NSF | REVERSE OSMOSIS | — | — | — | |
Geekpure M9 3HA RO 75GPD NSF | REVERSE OSMOSIS | — | — | — | |
APEC M9 4HA RO 50GPD NSF | REVERSE OSMOSIS | — | — | — | |
APEC M9 4SS RO 50GPD NSF | REVERSE OSMOSIS | — | — | — | |
APEC M9 5HA RO 50GPD NSF | REVERSE OSMOSIS | — | — | — | |
Geekpure M9 5HA RO 75GPD NSF | REVERSE OSMOSIS | — | — | — | |
Pentair Everpure Residential ROM IV NSF | REVERSE OSMOSIS | — | — | — | |
Pentair RO-2550 NSF | REVERSE OSMOSIS | — | — | — | |
Maytag DRINKING WATER SYSTEM MODEL M-550 NSF | REVERSE OSMOSIS | — | — | — | |
A.O. Smith High Efficiency Reverse Osmosis AOS-HERO-CHR WQA | REVERSE OSMOSIS | 250 gal | — | — | |
APEC RO-Hi WQA | REVERSE OSMOSIS | 33.3 gal | — | — | |
Aquasana AQ-SFRO2 WQA | REVERSE OSMOSIS | 25.7 gal | — | — | |
Aquasana OptimH2O AQ-RO-3 WQA | REVERSE OSMOSIS | 13.32 gal | — | — | |
Brondell RC100 WQA | REVERSE OSMOSIS | 180 gal | — | — | |
Culligan 10" Softener-Cleer WQA | WHOLE-HOUSE | 3,000 gal | — | — | |
Culligan 10" Softener-Cleer Plus WQA | WHOLE-HOUSE | 3,000 gal | — | — | |
Culligan 12" Softener-Cleer WQA | WHOLE-HOUSE | 4,000 gal | — | — | |
Culligan 12" Softener-Cleer Plus WQA | WHOLE-HOUSE | 4,000 gal | — | — | |
Culligan 14" Softener-Cleer WQA | WHOLE-HOUSE | 6,000 gal | — | — | |
Culligan 14" Softener-Cleer Plus WQA | WHOLE-HOUSE | 6,000 gal | — | — | |
Culligan 9" Softener-Cleer WQA | WHOLE-HOUSE | 2,000 gal | — | — | |
Culligan 9" Softener-Cleer Plus WQA | WHOLE-HOUSE | 2,000 gal | — | — | |
Culligan 9" Softener-Cleer Plus Outdoor WQA | WHOLE-HOUSE | 2,000 gal | — | — | |
Culligan AC-30 WQA | REVERSE OSMOSIS | 14.5 gal | — | — | |
Culligan AC-30 Plus WQA | REVERSE OSMOSIS | 14.5 gal | — | — | |
Culligan AC-30L WQA | REVERSE OSMOSIS | 14.5 gal | — | — | |
Culligan AC-30L Plus WQA | REVERSE OSMOSIS | 14.5 gal | — | — | |
Culligan AC-30M WQA | REVERSE OSMOSIS | 14.5 gal | — | — | |
Culligan AC-30M Plus WQA | REVERSE OSMOSIS | 14.5 gal | — | — | |
Culligan Municipal 12" WQA | WHOLE-HOUSE | 621,000 gal | — | — | |
Culligan Municipal 12" Outdoor WQA | WHOLE-HOUSE | 621,000 gal | — | — | |
Culligan Municipal 14" WQA | WHOLE-HOUSE | 931,500 gal | — | — | |
Culligan Municipal 14" Outdoor WQA | WHOLE-HOUSE | 931,500 gal | — | — | |
Culligan RO (2 yr) WQA | REVERSE OSMOSIS | 27.8 gal | — | — | |
Culligan Smart RO WQA | REVERSE OSMOSIS | 34.1 gal | — | — | |
Culligan Smart RO (2 yr) WQA | REVERSE OSMOSIS | 34.1 gal | — | — | |
Culligan Smart RO (2yr) Nitrate WQA | REVERSE OSMOSIS | 34.1 gal | — | — | |
Culligan Smart RO Nitrate WQA | REVERSE OSMOSIS | 34.1 gal | — | — |
Amazon prices as of October 20, 2026 at 2:01 PM ET. Prices can change; the price on Amazon is the one that counts. 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.