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.

19 Products found

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  1. 4002575/GRO-75EN Pentair GPD Encapsulated Membrane

    Price $81.99 List Price Price $116.99 Save 29%
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  2. RFFE20-BB Pentek Iron Reducing Water Filter Cartridge (20 in x 4.5 in)

    Price $116.99 List Price Price $166.99 Save 29%
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  3. BBF1-20MB Pentek Whole House Filter Replacement Cartridge

    Price $154.99 List Price Price $220.99 Save 29%
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  4. ROM-230TN Pentek Reverse Osmosis Membrane

    Price $127.99 List Price Price $182.99 Save 30%
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  5. PCF1-20MB Pentek Whole House Filter Replacement Cartridge

    Price $71.99 List Price Price $102.99 Save 30%
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  6. PCF1-10MB Pentek Whole House Filter Replacement Cartridge

    Price $42.99 List Price Price $60.99 Save 29%
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  7. WS-20BB Pentek Whole House Filter Replacement Cartridge

    Price $70.99 List Price Price $100.99 Save 29%
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  8. Pentek C1 Undersink Water Filter Replacement Cartridge

    Price $13.99 List Price Price $19.99 Save 30%
  9. ROM-16C Pentek Reverse Osmosis Replacement Membrane

    Price $77.99 List Price Price $110.99 Save 29%
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  10. P-250 Pentek Undersink Filter Set

    Price $36.99 List Price Price $52.99 Save 30%
  11. P-250A Pentek Undersink Filter Set

    Price $37.99 List Price Price $53.99 Save 29%
  12. DBC-10EX2 Pentek Water Filter Cartridge Replacement

    Price $72.99 List Price Price $103.99 Save 29%
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19 Products found

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