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.

143 Products found

Set Descending Direction
Page
View as Grid List
  1. Pentair GRO-75EN TLC Encapsulated Membrane

    Price $99.99 List Price Price $142.99 Save 30%
    Free Shipping
  2. Pentair GRO-50EN TLC Encapsulated Membrane

    Price $93.99 List Price Price $134.99 Save 30%
    Free Shipping
  3. Aqua Flo AQUA-FLO-1812-50 Reverse Osmosis Membrane Water Filter

    Price $17.99 List Price Price $25.99 Save 30%
  4. Axeon TF-3012-500 Reverse Osmosis Membrane

    Price $99.99 List Price Price $142.99 Save 30%
    Free Shipping
  5. 5-Stage Reverse Osmosis System by Tier1

    Price $159.99 List Price Price $228.99 Save 30%
    Free Shipping
  6. EP-10 Pentek Comparable Whole House Water Filter by Tier1

    Price $12.99 List Price Price $18.99 Save 31%
  7. Aqua Flo Reverse Osmosis Membrane (50 GPD)

    Price $23.99 List Price Price $34.99 Save 31%

143 Products found

Set Descending Direction
Page
View as Grid List