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
156
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.
Top certified picks with prices
All 1,184 certified filters
| Filter | Type | Capacity | Price | ¢/gal | |
|---|---|---|---|---|---|
3M DP390-M NSF | UNDER-SINK | 225,000 gal | $788 | 0.2 | Buy |
FALSKEN H2OTreater Series NSF | COMMERCIAL | 29,000 gal | $135 | 0.5 | Buy |
Pentair XXX-10422 NSF | UNDER-SINK | 20,000 gal | $159.47 | 0.8 | Buy |
Soft Water Supply North Star NSRO42C4 NSF | REVERSE OSMOSIS | 3,850 gal | $65.99 | 1.7 | Buy |
3M High Flow Series BREW NSF | COMMERCIAL | 3,500 gal | $69.58 | 2.0 | Buy |
Aqua-Pure 3MFF100 NSF | UNDER-SINK | 6,000 gal | $238.42 | 4.0 | Buy |
Aqua-Pure AP Easy Cyst-FF NSF | UNDER-SINK | 2,000 gal | $89.95 | 4.5 | Buy |
Filtrete 3US-MAX-S01 NSF | UNDER-SINK | 1,500 gal | $95.7 | 4.7 | Buy |
Filtrete 3US-MAX-S01H NSF | UNDER-SINK | 1,500 gal | $95.7 | 4.7 | Buy |
SUAN ADQ74793502 NSF | REFRIGERATOR | 200 gal | $9.36 | 4.7 | Buy |
Mist CWMF005-S NSF | REFRIGERATOR | 300 gal | $16.99 | 5.7 | Buy |
EcoPure ECOP30 NSF | REVERSE OSMOSIS | 3,850 gal | $219.99 | 6.2 | 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 |
AQUA CREST EFF-6014S NSF | REFRIGERATOR | 300 gal | $19.99 | 6.7 | Buy |
InSinkErator F-2000S NSF | UNDER-SINK | 500 gal | $69.99 | 8.0 | Buy |
InSinkErator F-HC1100xx NSF | UNDER-SINK | 500 gal | $40 | 8.0 | Buy |
AQUA CREST EFF-6002S NSF | REFRIGERATOR | 300 gal | $25.99 | 8.7 | Buy |
Waterdrop EFF-6011S NSF | REFRIGERATOR | 300 gal | $25.99 | 8.7 | Buy |
Tier1 EFF-WFCBS NSF | REFRIGERATOR | 200 gal | $17.99 | 9.0 | Buy |
AQUA CREST EFF-6005S NSF | REFRIGERATOR | 300 gal | $26.99 | 9.0 | Buy |
AQUA CREST EFF-6027S NSF | REFRIGERATOR | 300 gal | $26.99 | 9.0 | Buy |
Waterdrop EFF-6007S NSF | REFRIGERATOR | 300 gal | $26.99 | 9.0 | Buy |
Tier1 EFF-6002S NSF | REFRIGERATOR | 300 gal | $28.99 | 9.7 | Buy |
Tier1 EFF-6009S NSF | REFRIGERATOR | 300 gal | $28.99 | 9.7 | Buy |
Waterdrop EFF-6005S NSF | REFRIGERATOR | 300 gal | $29.99 | 10.0 | Buy |
AQUA CREST EFF-6022S NSF | REFRIGERATOR | 300 gal | $30.69 | 10.2 | Buy |
Tier1 EFF-6005S NSF | REFRIGERATOR | 300 gal | $30.99 | 10.3 | Buy |
Tier1 EFF-6011S NSF | REFRIGERATOR | 300 gal | $30.99 | 10.3 | Buy |
Tier1 EFF-6013S NSF | REFRIGERATOR | 300 gal | $30.99 | 10.3 | Buy |
Tier1 EFF-6014S NSF | REFRIGERATOR | 300 gal | $30.99 | 10.3 | Buy |
Tier1 EFF-6019S NSF | REFRIGERATOR | 300 gal | $30.99 | 10.3 | Buy |
Tier1 EFF-6022S NSF | REFRIGERATOR | 300 gal | $30.99 | 10.3 | Buy |
Tier1 EFF-6023S NSF | REFRIGERATOR | 300 gal | $30.99 | 10.3 | Buy |
Tier1 EFF-6025S NSF | REFRIGERATOR | 300 gal | $30.99 | 10.3 | Buy |
Tier1 EFF-6026S NSF | REFRIGERATOR | 300 gal | $30.99 | 10.3 | Buy |
Tier1 EFF-6027S NSF | REFRIGERATOR | 300 gal | $30.99 | 10.3 | Buy |
Waterdrop EFF-6022S NSF | REFRIGERATOR | 300 gal | $31.86 | 10.6 | Buy |
Aqua-Pure AP Easy Complete NSF | UNDER-SINK | 750 gal | $82.25 | 11.0 | Buy |
Aqua-Pure Complete Cooler NSF | UNDER-SINK | 750 gal | $82.25 | 11.0 | Buy |
AQUA CREST EFF-6025S NSF | REFRIGERATOR | 300 gal | $32.99 | 11.0 | Buy |
Samsung Samsung NSF | REFRIGERATOR | 300 gal | $34.99 | 11.7 | Buy |
Waterdrop EFF-6025S 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 |
Tier1 EFF-6003S NSF | REFRIGERATOR | 300 gal | $37.99 | 12.7 | Buy |
Tier1 EFF-6007S NSF | REFRIGERATOR | 300 gal | $37.99 | 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 |
ICEPURE RWFS0900AH NSF | REFRIGERATOR | 300 gal | $39.99 | 13.3 | Buy |
LG LG NSF | REFRIGERATOR | 300 gal | $39.99 | 13.3 | Buy |
Water Factory by 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 |
AFWFilters Pentair GRO-575B NSF | REVERSE OSMOSIS | 675 gal | $809 | 13.8 | Buy |
ramco P1WB2L NSF | REFRIGERATOR | 200 gal | $27.79 | 13.9 | Buy |
InSinkErator F-GN1100xx NSF | UNDER-SINK | 500 gal | $69.99 | 14.0 | Buy |
InSinkErator F-H3300xx NSF | UNDER-SINK | 500 gal | $69.99 | 14.0 | Buy |
InSinkErator F-HC3300xx NSF | UNDER-SINK | 500 gal | $69.99 | 14.0 | Buy |
Waterdrop EFF-6027S NSF | REFRIGERATOR | 300 gal | $42.99 | 14.3 | Buy |
OMNIFilter CBF3 NSF | UNDER-SINK | 400 gal | $100.94 | 14.7 | Buy |
Samsung Samsung NSF | REFRIGERATOR | 300 gal | $44.98 | 15.0 | Buy |
GLACIER FRESH ADQ36006102-S NSF | REFRIGERATOR | 200 gal | $29.99 | 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 |
Tier1 EFF-6020S NSF | REFRIGERATOR | 200 gal | $30.99 | 15.5 | Buy |
Tier1 EFF-6032S NSF | REFRIGERATOR | 200 gal | $30.99 | 15.5 | Buy |
AQUA CREST EFF-6019S NSF | REFRIGERATOR | 300 gal | $46.99 | 15.7 | Buy |
AQUA CREST EFF-6046S NSF | REFRIGERATOR | 200 gal | $32.29 | 16.1 | Buy |
Wildberries DA97-08006A-2 NSF | REFRIGERATOR | 300 gal | $49.99 | 16.7 | Buy |
Wildberries Samsung NSF | REFRIGERATOR | 300 gal | $49.99 | 16.7 | 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 |
EveryDrop by Whirlpool EDR5RXD1B NSF | REFRIGERATOR | 240 gal | $48 | 20.0 | Buy |
EveryDrop by Whirlpool PWF-NL240V NSF | REFRIGERATOR | 240 gal | $48 | 20.0 | Buy |
GE Waterdrop EFF-6023S NSF | REFRIGERATOR | 300 gal | $63.88 | 21.3 | Buy |
EveryDrop by Whirlpool EDR3RXD1B NSF | REFRIGERATOR | 200 gal | $46.12 | 23.1 | Buy |
EveryDrop by Whirlpool EDR3RXD1R NSF | REFRIGERATOR | 200 gal | $46.12 | 23.1 | Buy |
EveryDrop by Whirlpool P1WB2 NSF | REFRIGERATOR | 200 gal | $46.12 | 23.1 | Buy |
EveryDrop by 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 |
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 |
EveryDrop EDR1RXD1B NSF | REFRIGERATOR | 200 gal | $50.8 | 25.4 | Buy |
EveryDrop EDR1RXD1R NSF | REFRIGERATOR | 200 gal | $50.8 | 25.4 | Buy |
Waterdrop EFF-6019S NSF | REFRIGERATOR | 300 gal | $79.99 | 26.7 | Buy |
EveryDrop by Whirlpool EDR2RXD1B NSF | REFRIGERATOR | 200 gal | $53.99 | 27.0 | Buy |
EveryDrop by Whirlpool EDR2RXD1R NSF | REFRIGERATOR | 200 gal | $53.99 | 27.0 | Buy |
EveryDrop by Whirlpool P9WB2L NSF | REFRIGERATOR | 200 gal | $53.99 | 27.0 | Buy |
EveryDrop by Whirlpool W11569863 NSF | REFRIGERATOR | 200 gal | $53.99 | 27.0 | Buy |
Soft Water Supply North Star NSDW500 NSF | UNDER-SINK | 270 gal | $73 | 27.0 | 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 |
EcoPure ECOP20 NSF | UNDER-SINK | 270 gal | $88.71 | 32.9 | Buy |
Everpure Residential H-1200 NSF | UNDER-SINK | 1,000 gal | $349.01 | 34.9 | Buy |
CAT MF-1807-R5A NSF | REFRIGERATOR | 200 gal | $76.2 | 38.1 | Buy |
EveryDrop by Whirlpool W11256135 NSF | REFRIGERATOR | 100 gal | $48.63 | 48.6 | Buy |
EveryDrop by Whirlpool W11602799 NSF | REFRIGERATOR | 100 gal | $53.99 | 54.0 | Buy |
EveryDrop by Whirlpool W11569861 NSF | REFRIGERATOR | 100 gal | $53.99 | 54.0 | Buy |
XHDBTYFKN MF-1807-R5B NSF | REFRIGERATOR | 200 gal | $110.8 | 55.4 | Buy |
Everpure MRS-600HE-II-P General Market NSF | REVERSE OSMOSIS | 20,000 gal | $717.81 | — | Buy |
Multipure Aquamini NSF | UNDER-SINK | 250 gal | $395 | — | Buy |
Multipure Aquaperform NSF | UNDER-SINK | 600 gal | $765 | — | Buy |
Showing 120 of 1,184. See all in the database →