Reverse Osmosis Water Filter Replacements

Keep your reverse osmosis system up and running smooth with a new reverse osmosis water filter.

Your reverse osmosis water filter plays a crucial role in your reverse osmosis filtration system, so it’s important to change it out periodically (ideally once every 6-12 months). By doing so, you’ll extend the life of not only your entire reverse osmosis system but also the life of your RO membrane.

Below you’ll find over 40+ reverse osmosis water filter brands and sets, at a price guaranteed to beat the big box store prices. All of our reverse osmosis water filters are included in our 100% Price Match Guarantee. Meaning if you find a RO water filter priced somewhere else for less than our price, we’ll match the lower price. Shopping for a new RO water filter doesn’t get much better than that.

19 Products found

Set Descending Direction
Page
View as Grid List
  1. Tier1 RO5 Replacement Filter Bundle 5-Pack

    Price $49.99 List Price Price $71.99 Save 30%
    Free Shipping
  2. P1 Pentek Comparable Whole House Sediment Water Filter by Tier1

    Price $4.99 List Price Price $6.99 Save 28%
  3. EP-10 Pentek Comparable Whole House Water Filter by Tier1

    Price $11.99 List Price Price $16.99 Save 29%
  4. 41400009 Hydrotech Reverse Osmosis Filter

    Price $15.99 List Price Price $22.99 Save 30%
  5. Culligan Pre-Reverse Osmosis Carbon Block Comparable Filter by Tier1

    Price $12.99 List Price Price $18.99 Save 31%
  6. 3038333 Merlin Reverse Osmosis Carbon Pre Filter

    Price $47.99 List Price Price $68.99 Save 30%
    Free Shipping
  7. 3MROP416-20A 3M Undersink Reverse Osmosis Replacement Filter Cartridge

    Price $54.99 List Price Price $78.99 Save 30%
    Free Shipping
  8. MAXETW-975 Watts C-MAX Replacement Water Filter Cartridge

    Price $21.99 List Price Price $31.99 Save 31%
  9. MAXVOC-975 Watts C-MAX Water Filter Cartridge

    Price $21.99 List Price Price $31.99 Save 31%
  10. S7025 Microline Replacement Filter Cartridge

    Price $27.99 List Price Price $39.99 Save 30%
  11. 41400008 Hydrotech Reverse Osmosis Filter

    Price $9.99 List Price Price $14.99 Save 33%

19 Products found

Set Descending Direction
Page
View as Grid List