Reverse Osmosis Filters & Membranes

Inline carbon post filter from CFS, a direct replacement for AICRO and 43000140, with 1/4" FPT female threads on both ends. Coconut shell granular ...

CFS 5th stage inline post carbon filter replacement cartridge, 10 x 2 inches with 1/4" quick connect fittings, compatible with the FT15 position. I...

CFS inline carbon post filter with granular coconut shell carbon in a 10 x 2 inch inline body. It sits on the outlet of a reverse osmosis system, b...

Inline carbon post filter from CFS, a direct replacement for AICRO and 43000140, with 1/4" FPT female threads on both ends. Coconut shell granular ...

CFS inline coconut shell carbon filter compatible with Olympia Water Systems stage 5 post carbon replacement filters for OROS-50 and OROS-80 system...

CFS 10" inline carbon post filter with 1/4" quick-connect fittings. Sits between the storage tank and faucet on a reverse osmosis system, where coc...

CFS pre and post carbon filter cartridge sets with O-rings, compatible with GE FX12P and FX12M cartridges for GXRM10RBL, GXRV10ABL, and PNRV12 reve...

T33 inline coconut grade activated carbon filter with 1/4" female (FPT) connections. Used as a pre or post membrane filter to polish water for tast...

CFS replacement water filter kit with one sediment and one carbon cartridge, rated at 1 micron, compatible with 10" reverse osmosis and under sink ...

CFS 3-piece replacement water filter set for Hydro Logic Stealth RO150 systems: one sediment cartridge, one carbon block cartridge, and one 150 GPD...

CFS 5-stage reverse osmosis replacement filter kit (CFS-66) for routine service of many standard under-sink RO systems that use 10 inch replacement...

A single CFS 50 GPD thin film composite reverse osmosis membrane with a built-in check valve, for 4SV, 5SV, and ZeroWaste systems. These systems ar...

CFS replacement water filter set for AC-30 reverse osmosis systems. The 4-piece set includes carbon block, sediment, and inline cartridges to cover...

CFS three-piece reverse osmosis prefilter set: one 5 micron sediment filter and two carbon blocks, all standard 10 x 2.5 inch cartridges. The sedim...

Two-pack of Hydrotech 41400008/41400009 replacement reverse osmosis filter cartridge sets for Hydrotech RO systems. Two replacement cartridge sets ...

Five piece RO kit from CFS with a 75 GPD membrane — the full annual service in one box: one sediment filter, one granular carbon, one carbon block,...

Four piece RO kit from CFS with a 50 GPD membrane — the full annual service in one box: one sediment filter, one carbon block, one 50 GPD reverse o...

RO replacement filter set from CFS for the WP5-50 five stage system, covering the 560002 and 560018 positions. The full 7-piece annual kit includes...

Replacement filter kit from CFS for the Goldline-50 5 stage 50 GPD Gold Seal reverse osmosis system. The kit includes two activated carbon block fi...

RO replacement filter set from CFS for WP-4V and WP5-50 five stage systems. The prefilters and the 50 GPD membrane in one box — on most systems, th...

RO prefilter set from CFS covering the three prefilter positions of FILTER-MAX-ES50 and ROES-50 systems: one 5 micron sediment filter and two carbo...

Compatible replacement reverse osmosis membrane that fits the Rainsoft 21176 reverse osmosis system. Reduces total dissolved solids (TDS), includin...

Original Hydrotech reverse osmosis replacement filter cartridge set, 3-pack (part numbers 41400008/41400009).Set of 3 replacement cartridgesCompati...

Drop-in reverse osmosis compatible cartridge kit from CFS for ROR2050-S3-S06 systems. Each kit includes one RS14 cartridge, one CB1 cartridge, and ...

This CFS universal replacement kit restores an under sink reverse osmosis system to day-one performance in one change: a 5 micron sediment pre-filt...

Hydrotech 41400008/41400009 replacement filter cartridge set for Hydrotech reverse osmosis systems. Pack of 3 filters: 1 sediment filter and 2 carb...

Hydrotech 33001068 replacement 25 GPD reverse osmosis membrane with filter set for Hydrotech RO systems. 25 gallons per day (GPD) membrane output R...

This CFS 5 pack replacement kit includes sediment, carbon block and inline GAC cartridges plus a membrane, covering a full filter change for PureGe...

Pura 41407008 quick change reverse osmosis membrane replacement for the Pura QCRO 4 Stage Quick Change RO System. This 75 gallon-per-day membrane r...

This 4 pack of CFS carbon water filter cartridges works as a reverse osmosis pre and post filter set, helping reduce bad taste and odor. Simple dro...

Universal 10 inch replacement filter set with carbon block, sediment, and inline filters for reverse osmosis systems. Includes carbon block, sedime...

Replacement pre and post filter compatible with Smart Water reverse osmosis GXRM10 systems. Compatible replacement for GXRM10 Simple drop-in replac...

Complete replacement filter set for 6 stage reverse osmosis systems. This 4 pack includes a carbon block filter, polypropylene sediment filter, GAC...