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.

31 Products found

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

    Price $1,000.00
    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 $29.99 List Price Price $42.99 Save 30%
  4. P1 Pentek Comparable Whole House Sediment Water Filter by Tier1

    Price $6.99 List Price Price $9.99 Save 30%
  5. EP-10 Pentek Comparable Whole House Water Filter by Tier1

    Price $14.99 List Price Price $20.99 Save 28%
  6. 41400009 Hydrotech Reverse Osmosis Filter

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

    Price $12.99 List Price Price $18.99 Save 31%
  8. 3038333 Merlin Reverse Osmosis Carbon Pre Filter

    Price $44.99 List Price Price $63.99 Save 29%
    Free Shipping
  9. WHERF Whirlpool Reverse Osmosis System Pre and Post Filter Set

    Price $54.99 List Price Price $78.99 Save 30%
    Free Shipping
  10. 3MROP416-20A 3M Undersink Reverse Osmosis Replacement Filter Cartridge

    Price $53.99 List Price Price $76.99 Save 29%
    Free Shipping
  11. MAXETW-975 Watts C-MAX Replacement Water Filter Cartridge

    Price $21.99 List Price Price $31.99 Save 31%

31 Products found

Set Descending Direction
Page
View as Grid List