Certified to remove
Water filters certified to remove Cryptosporidium
Chlorine-resistant protozoan parasite; causes severe diarrheal illness. Regulated via treatment technique (LT2), not an MCL.
1,184
certified models
206
with current prices
"Certified" means the model is listed in the NSF, WQA, or IAPMO public database as reducing Cryptosporidium — not just "tested to" a standard.
Two ways to fix it
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 Cryptosporidium.
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.
167 consumer filters certified to remove Cryptosporidium
Recognizable brands worth shopping. (1,184 models are certified in total, including commercial, dealer-installed, and OEM units — see the full registry.)
| Filter | Type | Capacity | Price | ¢/gal | |
|---|---|---|---|---|---|
3M DP390-M NSF | UNDER-SINK | 225,000 gal | $788 | 0.2 | Buy |
3M DP290-M NSF | UNDER-SINK | 150,000 gal | $521.89 | 0.4 | Buy |
3M CFS8812X NSF | UNDER-SINK | 9,000 gal | $81.34 | 0.9 | Buy |
3M CFS8812X-S NSF | UNDER-SINK | 9,000 gal | $81.34 | 0.9 | Buy |
Aqua-Pure 3MFF100 NSF | UNDER-SINK | 6,000 gal | $238.42 | 4.0 | Buy |
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 |
Samsung Samsung NSF | REFRIGERATOR | 600 gal | $38.11 | 6.3 | Buy |
Samsung DA97-08006N-3 NSF | REFRIGERATOR | 600 gal | $38.11 | 6.3 | Buy |
Pentair F1000-B1B NSF | UNDER-SINK | 750 gal | $48.54 | 6.4 | Buy |
Samsung Samsung NSF | REFRIGERATOR | 300 gal | $34.99 | 11.7 | Buy |
Samsung DA97-08006C NSF | REFRIGERATOR | 316 gal | $37.59 | 11.9 | Buy |
Samsung DA97-08006C-1 NSF | REFRIGERATOR | 316 gal | $38.11 | 12.1 | Buy |
Samsung Samsung NSF | REFRIGERATOR | 316 gal | $38.11 | 12.1 | Buy |
Samsung Samsung NSF | REFRIGERATOR | 316 gal | $38.11 | 12.1 | Buy |
Doulton Ecofast Ultracarb Inline NSF | UNDER-SINK | 600 gal | $76 | 12.7 | Buy |
Doulton HIP NSF | UNDER-SINK | 600 gal | $76 | 12.7 | Buy |
Doulton QT Ultracarb Inline NSF | UNDER-SINK | 600 gal | $76 | 12.7 | Buy |
Doulton Ultracarb W9123053 NSF | UNDER-SINK | 600 gal | $76 | 12.7 | Buy |
Samsung Samsung NSF | REFRIGERATOR | 300 gal | $38.11 | 12.7 | Buy |
LG EFF-6003S NSF/IAPMO | REFRIGERATOR | 300 gal | $39.99 | 13.3 | Buy |
LG EFF-6005S NSF | REFRIGERATOR | 300 gal | $39.99 | 13.3 | Buy |
LG EFF-6020S NSF | REFRIGERATOR | 300 gal | $39.99 | 13.3 | Buy |
LG 5231JA2006A-S NSF | REFRIGERATOR | 300 gal | $39.99 | 13.3 | Buy |
LG Amazon Basics EFF-6003S NSF | REFRIGERATOR | 300 gal | $39.99 | 13.3 | Buy |
LG Amazon Basics EFF-6005S NSF | REFRIGERATOR | 300 gal | $39.99 | 13.3 | Buy |
LG Maxblue EFF-6003S NSF | REFRIGERATOR | 300 gal | $39.99 | 13.3 | Buy |
LG Maxblue EFF-6005S NSF | REFRIGERATOR | 300 gal | $39.99 | 13.3 | Buy |
LG LG NSF | REFRIGERATOR | 300 gal | $39.99 | 13.3 | 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 F2000-B2B NSF | UNDER-SINK | 675 gal | $279.55 | 13.8 | Buy |
Pentair F3000-B2B NSF | UNDER-SINK | 675 gal | $93.26 | 13.8 | Buy |
Pentair GRO-575B NSF | REVERSE OSMOSIS | 675 gal | $809 | 13.8 | Buy |
Pentair OmniFilter CBF3 NSF | UNDER-SINK | 400 gal | $100.94 | 14.7 | Buy |
Samsung Samsung NSF | REFRIGERATOR | 300 gal | $44.98 | 15.0 | Buy |
Samsung DA97-08006A-1 NSF | REFRIGERATOR | 300 gal | $44.98 | 15.0 | Buy |
Kenmore P1KB1 NSF | REFRIGERATOR | 200 gal | $30 | 15.0 | Buy |
Samsung Samsung NSF | REFRIGERATOR | 300 gal | $49.99 | 16.7 | Buy |
Doulton Ecofast Biotect Ultra Inline NSF | UNDER-SINK | 600 gal | $199.99 | 18.3 | Buy |
Doulton HIP Biotect Ultra Inline NSF | UNDER-SINK | 600 gal | $199.99 | 18.3 | Buy |
Doulton QT1 Biotect Ultra Inline NSF | UNDER-SINK | 600 gal | $199.99 | 18.3 | Buy |
Doulton Kingfisher NSF | UNDER-SINK | 600 gal | $199.99 | 18.3 | Buy |
Doulton Biotect Ultra W9123050 NSF | UNDER-SINK | 600 gal | $109.99 | 18.3 | Buy |
LG ADQ36006101-S NSF | REFRIGERATOR | 200 gal | $37.89 | 18.9 | Buy |
LG Amazon Basics EFF-6032S NSF | REFRIGERATOR | 200 gal | $37.89 | 18.9 | Buy |
LG Overbest EFF-6032S NSF | REFRIGERATOR | 200 gal | $37.89 | 18.9 | Buy |
LG ADQ73613401-S NSF | REFRIGERATOR | 200 gal | $39.99 | 20.0 | Buy |
LG Amazon Basics EFF-6020S NSF | REFRIGERATOR | 200 gal | $39.99 | 20.0 | Buy |
LG Maxblue EFF-6020S NSF | REFRIGERATOR | 200 gal | $39.99 | 20.0 | Buy |
Whirlpool EDR5RXD1B NSF | REFRIGERATOR | 240 gal | $48 | 20.0 | Buy |
Whirlpool PWF-NL240V NSF | REFRIGERATOR | 240 gal | $48 | 20.0 | Buy |
Waterdrop EFF-6023S NSF | REFRIGERATOR | 300 gal | $63.88 | 21.3 | Buy |
Whirlpool EDR3RXD1B NSF | REFRIGERATOR | 200 gal | $46.12 | 23.1 | Buy |
Whirlpool EDR3RXD1R NSF | REFRIGERATOR | 200 gal | $46.12 | 23.1 | Buy |
Whirlpool P1WB2 NSF | REFRIGERATOR | 200 gal | $46.12 | 23.1 | Buy |
Whirlpool W11311161 NSF | REFRIGERATOR | 200 gal | $48.63 | 24.3 | 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 |
3M 3MDW301 NSF | UNDER-SINK | 1,000 gal | $307.98 | 24.9 | Buy |
3M 3MDW310 NSF | UNDER-SINK | 1,000 gal | $256.41 | 24.9 | Buy |
Frigidaire AQUA CREST EFF-6047S NSF | REFRIGERATOR | 200 gal | $49.99 | 25.0 | Buy |
Frigidaire Maxblue EFF-6047S NSF | REFRIGERATOR | 200 gal | $49.99 | 25.0 | Buy |
Whirlpool EDR1RXD1B NSF | REFRIGERATOR | 200 gal | $50.8 | 25.4 | Buy |
Whirlpool EDR1RXD1R NSF | REFRIGERATOR | 200 gal | $50.8 | 25.4 | Buy |
Whirlpool EDR2RXD1B NSF | REFRIGERATOR | 200 gal | $53.99 | 27.0 | Buy |
Whirlpool EDR2RXD1R NSF | REFRIGERATOR | 200 gal | $53.99 | 27.0 | Buy |
Whirlpool P9WB2L NSF | REFRIGERATOR | 200 gal | $53.99 | 27.0 | Buy |
Whirlpool W11569863 NSF | REFRIGERATOR | 200 gal | $53.99 | 27.0 | Buy |
Aqua-Pure AP-DWS1000 NSF | UNDER-SINK | 625 gal | $169.45 | 27.1 | Buy |
Aqua-Pure AP-DWS1000 LF NSF | UNDER-SINK | 625 gal | $169.45 | 27.1 | Buy |
Samsung Samsung NSF | REFRIGERATOR | 300 gal | $84.7 | 28.2 | Buy |
Samsung DA97-06317A NSF | REFRIGERATOR | 300 gal | $84.7 | 28.2 | Buy |
Kenmore P1KB2 NSF | REFRIGERATOR | 100 gal | $30 | 30.0 | Buy |
Pentair Everpure Residential H-1200 NSF | UNDER-SINK | 1,000 gal | $349.01 | 34.9 | Buy |
Whirlpool W11256135 NSF | REFRIGERATOR | 100 gal | $48.63 | 48.6 | Buy |
Whirlpool W11602799 NSF | REFRIGERATOR | 100 gal | $53.99 | 54.0 | Buy |
Whirlpool W11569861 NSF | REFRIGERATOR | 100 gal | $53.99 | 54.0 | Buy |
Bosch WFS200KF NSF | REFRIGERATOR | 250 gal | $45.07 | — | Buy |
Bosch WFS210KF NSF | REFRIGERATOR | 150 gal | $45.07 | — | Buy |
Doulton HIP NSF | UNDER-SINK | 1 gal | $39.79 | — | Buy |
Berkefeld British Berkefeld SS2 Ultra Sterasyl NSF | PITCHER | 1 gal | $84 | — | Buy |
Doulton Biotect Ultra SI NSF | UNDER-SINK | 600 gal | $109.99 | — | Buy |
Doulton Biotect Ultracarb W9123070 NSF | UNDER-SINK | 600 gal | $76 | — | Buy |
Doulton Sterasyl W9120562 NSF | UNDER-SINK | 1 gal | $39.79 | — | Buy |
Doulton Ultra Sterasyl W9121226 NSF | PITCHER | 1 gal | $84 | — | Buy |
Geekpure ERO-175 NSF | REVERSE OSMOSIS | 3,850 gal | $37.99 | — | Buy |
Frigidaire FF21110-S NSF | REFRIGERATOR | 300 gal | $49.99 | — | Buy |
Frigidaire FF21120-S NSF | REFRIGERATOR | 300 gal | $49.99 | — | Buy |
Frigidaire FF21130-S NSF | REFRIGERATOR | 300 gal | $49.99 | — | Buy |
Frigidaire FF21140-S NSF | REFRIGERATOR | 200 gal | $38.5 | — | Buy |
Frigidaire FF21200-S NSF | REFRIGERATOR | 300 gal | $49.99 | — | Buy |
Frigidaire FF21310-S NSF | REFRIGERATOR | 300 gal | $49.99 | — | Buy |
Frigidaire FF21340-S NSF | REFRIGERATOR | 316 gal | $49.99 | — | Buy |
Frigidaire FF21420-S NSF | REFRIGERATOR | 300 gal | $49.99 | — | Buy |
Frigidaire FF21430-S NSF | REFRIGERATOR | 300 gal | $49.99 | — | Buy |
Frigidaire FF21510-S NSF | REFRIGERATOR | 300 gal | $49.99 | — | Buy |
Frigidaire FF21630-S NSF | REFRIGERATOR | 200 gal | $49.99 | — | Buy |
Frigidaire FSWFRF3628 NSF | REFRIGERATOR | 200 gal | $49.99 | — | Buy |
GE M-SJWF300 NSF | REFRIGERATOR | 200 gal | $49.98 | — | Buy |
LG MDJ64844601 NSF | REFRIGERATOR | 200 gal | $46.73 | — | Buy |
LG ADQ747937 NSF | REFRIGERATOR | 200 gal | $46.73 | — | Buy |
LG ADQ74793704 NSF | REFRIGERATOR | 105 gal | $46.73 | — | Buy |
Whirlpool WFS400MF NSF | REFRIGERATOR | 739 gal | $48.63 | — | Buy |
Bosch WFS410MF NSF | REFRIGERATOR | 739 gal | $45.07 | — | Buy |
Multipure Aquamini NSF | UNDER-SINK | 250 gal | $395 | — | Buy |
Multipure Aquaperform NSF | UNDER-SINK | 600 gal | $765 | — | Buy |
Multipure Aquaversa NSF | UNDER-SINK | 750 gal | $620 | — | Buy |
Pentair S-104 NSF | UNDER-SINK | 1,000 gal | $147.72 | — | Buy |
Pentair OmniFilter RS14 NSF | UNDER-SINK | 100 gal | $9.35 | — | Buy |
Pentair Easy Flow NSF | UNDER-SINK | 3,000 gal | $106.04 | — | Buy |
Frizzlife FF-CP15R NSF | UNDER-SINK | 20,000 gal | $296.06 | — | Buy |
Whirlpool P8WB2L NSF | REFRIGERATOR | 200 gal | $50.8 | — | Buy |
Whirlpool W11602565 NSF | REFRIGERATOR | 100 gal | $50.8 | — | Buy |
APEC EAFF-100 NSF | UNDER-SINK | 2,000 gal | $99.99 | — | Buy |
Pentair PB35-10 NSF | UNDER-SINK | 20,000 gal | $10.73 | — | Buy |
Pentair PB55-20 NSF | UNDER-SINK | 40,000 gal | $199.41 | — | Buy |
Pentair Floplus 10 NSF | UNDER-SINK | 1 gal | $33 | — | Buy |
Showing 120 of 167. See all in the database →