Reverse Osmosis Water Filter Replacement Cartridges and Kits

Reverse Osmosis: a water purification technology that utilizes a semi-permeable membrane to remove microscopic particles (typically anything larger than 0.001 microns in size) from drinking water.

Select what type of reverse osmosis filter part you’re searching for (system, filter, etc.) and browse or search through hundreds of our reverse osmosis water filters, systems, membranes, and other water filter parts. Choose from some of the industry’s top reverse osmosis brands including, Watts®, Hydrologic, Hydrotech, and Water Factory Systems.

Not sure if investing in a reverse osmosis water filter is what you want, then check out our thousands of other popular water filters, including whole house, under sink, faucet filters, and many more.

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  1. ChloraShield Evolution Replaceable Upgraded Reverse Osmosis Filter

    Price $53.99 List Price Price $77.99 Save 30%
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  2. RO1000 Hydrologic Evolution Tankless Reverse Osmosis Filter System

    Price $741.99 List Price Price $1,059.99 Save 30%
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  3. 19026 Hydrologic Water Filtration System Pressure Gauge

    Price $27.99 List Price Price $39.99 Save 30%
  4. 27020 Hydrologic Reverse Osmosis System Float Valve

    Price $22.99 List Price Price $32.99 Save 30%
  5. 26040 Hydrologic Reverse Osmosis Membrane Flush Kit

    Price $19.99 List Price Price $28.99 Save 31%
  6. 22035 Hydrologic 4-Stage Reverse Osmosis Cartridge

    Price $121.99 List Price Price $174.99 Save 30%
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  7. 22070 Hydrologic BigBoy Replacement Carbon Filter

    Price $112.99 List Price Price $161.99 Save 30%
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  8. 31035 Hydrologic Stealth-150 Reverse Osmosis Filtration System

    Price $186.99 List Price Price $267.99 Save 30%
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  9. 31040 Hydrologic Stealth-RO200 Reverse Osmosis Water Filtration System

    Price $276.99 List Price Price $395.99 Save 30%
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