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Reverse Osmosis Filter Kits
Browse reverse osmosis replacement filter kits for routine system maintenance. Kits may include sediment prefilters, carbon filters, post-filters, and an RO membrane, depending on the model and stage count. Match the kit to your system brand or cartridge dimensions, membrane capacity, connection type, included stages, certifications, and recommended replacement schedule.
Filters
iFilters CBSM-2510 Coconut Shell CTO, Carbon Block Drinking Water Filter, 2.5 x 10, 0.5 Micron
4.4 / 5.0
15 Reviews
iFilters CBSM-2510 Coconut Shell CTO Carbon Block Drinking Water Filter – 2.5" x 10", 0.5 Micron High-Performance Filtration for Clean, Great-Tasti...
View full detailsiFilters RO-50KIT Smart Pack Water Filters Reverse Osmosis Replacement Filter Set RO Cartridges 5 pcs w/ 50 GPD Membrane
5.0 / 5.0
2 Reviews
Hydronix Reverse Osmosis (RO) Replacement Filter Set – 5 Stage Kit (50 GPD Membrane, 5 Pcs) Compatible with Standard 5-Stage RO Systems The Hydroni...
View full detailsAquatrol MED-CAT110E - Premium Grade Cation Resin - 10% Crosslink Premium Grade Water Softening Resin, Aquatrol 1 CuFt
5.0 / 5.0
4 Reviews
Aquatrol CAT110E – 10% Crosslink Premium Grade Cation Resin for Water Softening (1 CuFt) The Aquatrol CAT110E Premium Grade Cation Resin is a high-...
View full detailsHydronix CB-25-1005 Whole House RO Drinking Water Coconut Carbon Block Water Filter 5 m 2.5" x 10"
Hydronix CB-25-1005 Whole House RO Coconut Carbon Block Water Filter – 5 Micron, 2.5" x 10" Premium Carbon Block Filtration for Cleaner, Better-Tas...
View full detailsHydro Guard HDG-45-SET (Drop In) Reverse Osmosis Filter Replacement Set
5.0 / 5.0
6 Reviews
OEM Replacement Water Filter Cartridge Set for Hydro Guard HDG-45-SET 4-Stage Drop-In Reverse Osmosis System Keep your water filtration system oper...
View full detailsHydro Guard HDGT-45 Reverse Osmosis 1-Year Filter Replacement Set, 50 GPD
5.0 / 5.0
4 Reviews
Hydro Guard HDGT-45 Reverse Osmosis 1-Year Filter Replacement Set – 50 GPD The Hydro Guard HDGT-45 Reverse Osmosis 1-Year Filter Replacement Set is...
View full detailsHydronix SDC-25-1005 polypropylene sediment filters have a particle retention Size of 5 microns and are used in residential and commercial water fi...
View full details5 Stage NSF Reverse Osmosis RO Replacement Water Filter Set with 50 GPD Membrane. For any standard 5 Stage RO system. Sediment, GAC, CTO Carbon Blo...
View full detailsThe FW-1 wrench fits HF2 / HF3 / HF4 Series Hydronix Housings
Inline RO Post Fridge Ice Coconut GAC Water Filter 2000 Gal, 3/8" Quick Connect
5.0 / 5.0
1 Review
Hydronix ICF-10Q38 inline coconut shell carbon filters have 3/8" quick-connect connections, and are suitable for drinking water filtration applicat...
View full detailsThe FW-3 Wrench can be use to loosen Big Blue or Big Blue style filter housings when changing filters. The spanner wrench has four teeth. This FW-3...
View full detailsiFilters Smart Pack Water Filters RO-100KIT Reverse Osmosis Replacement Filter Set RO Cartridges 5 pcs w/ 100 GPD Membrane
5.0 / 5.0
2 Reviews
iFilters Smart Pack RO-100KIT – 5-Stage Reverse Osmosis Replacement Filter Set (100 GPD Membrane) High-Performance 5-Stage RO Filtration for Superi...
View full detailsASV Series Automatic Shut-off Valves are a key component in residential Reverse Osmosis systems. ASV Series Automatic Shut-off Valves are available...
View full detailsPro+Aqua Complete Reverse Osmosis Yearly Replacement Filter Set. Includes 1 sediment filter (Stage 1), 2 triple capacity carbon block filters (Stag...
View full detailsAquatrol PMP-300GPD – 300 GPD Reverse Osmosis Booster Pump High-Performance RO Booster Pump for 300 GPD Systems The Aquatrol PMP-300GPD is a heavy-...
View full detailsHydronix CB-25-1005 Carbon Block filters are NSF/ANSI Standard 42 certified for material and structural safety. CB-25-1005 filters have a particle ...
View full detailsHydronix SDC-25-2005 polypropylene sediment filters have a particle retention Size of 5 micron and is used in a residential and commercial water fi...
View full detailsHydron BW-4040 Reverse Osmosis Membrane – High-Performance Commercial RO, 2400 GPD The Hydron BW-4040 Reverse Osmosis Membrane is a high-efficiency...
View full details5 Stage NSF Reverse Osmosis RO Replacement Water Filter Set with 50 GPD Membrane. For any standard 5 Stage RO system. Sediment, GAC, CTO Carbon Blo...
View full details5 Stage Premium Reverse Osmosis Complete System 50 GPD, Chrome Faucet, 4 Gal Tank
5.0 / 5.0
1 Review
Designed to filter 99% of contaminants and provide 50 GPD of safe clean water, iFilters has introduced the best RO system in the market at a great ...
View full detailsThe PG25100L is UV resistant, high quality pressure gauge designed with the OEM in mind. From the special synthetic fluid used to fill the gauges t...
View full detailsiFilters CBSM-2510 Coconut Shell CTO Carbon Block Drinking Water Filter – 2.5" x 10", 0.5 Micron High-Performance Filtration for Clean, Great-Tasti...
View full detailsReverse Osmosis Replacement Filter Set RO Cartridges 4 stage w/ 50 GPD Membrane
5.0 / 5.0
4 Reviews
4 Stage NSF Reverse Osmosis RO Replacement Water Filter Set with 50 GPD Membrane. For most standard 4 Stage RO system. Sediment, CTO Carbon Block, ...
View full detailsThe Hydrofit 1/4" Tube x 1/4" NPTF Fixed Elbows are designed for ease of use. Hydrofit Quick Connect Fittings are designed to provide all the typic...
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