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Culligan Water Filter Replacement Cartridges & Filtration Products

Water filter cartridges and filtration products from Culligan help ensure you always enjoy the cleanest tasting drinking water, whether it’s served from your refrigerator, tap, or even the sink in your boat or RV! Below, find dozens of genuine OE Culligan products, including replacement water filter cartridges, filtration systems, tools and accessories. All products we offer are protected by our No Worries Price Match Guarantee, meaning if you see them for less anywhere else, just call us and we’ll honor the lower price. For help finding the Culligan water filtration products you need, please call us at 1-800-277-3458.


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  1. RV-EZ-1 Culligan Level 1 Easy-Change RV Inline Filter System
  2. RV-EZ-3 Culligan Level 3 Easy-Change RV Inline Filter System

    RV-EZ-3 Culligan Level 3 Easy-Change RV Inline Filter System

    Regular Price: $62.99

    Special Price: $45.05

  3. RC-EZ-1 Culligan Level 1 Easy-Change Inline Filter Replacement Cartridge

    RC-EZ-1 Culligan Level 1 Easy-Change Inline Filter Replacement Cartridge

    Fits Culligan Easy-Change filter systems including IC-EZ-1, US-EZ-1, and RV-EZ-1 Learn More
    $17.99
  4. RC-EZ-3 Culligan Level 3 Easy-Change Inline Filter Replacement Cartridge

    RC-EZ-3 Culligan Level 3 Easy-Change Inline Filter Replacement Cartridge

    Fits Culligan Easy-Change filter systems including IC-EZ-3, US-EZ-3, and RV-EZ-3 Learn More
    $24.99
  5. RC-EZ-4 Culligan Level 4 Easy-Change Inline Filter Replacement Cartridge

    RC-EZ-4 Culligan Level 4 Easy-Change Inline Filter Replacement Cartridge

    Fits Culligan Easy-Change filter systems including IC-EZ-4, US-EZ-4, and RV-EZ-4 Learn More
    $39.99
  6. SY-1000 Culligan Water Filtration System
  7. TS-500 Culligan Large Capacity Inline Filter Replacement Cartridge
  8. US-EZ-1 Culligan Level 1 Easy-Change Undersink Filter System
  9. US-EZ-3 Culligan Level 3 Easy-Change Undersink Filter System
  10. US-EZ-4 Culligan Level 4 Easy-Change Undersink Filter System
  11. D-30 Culligan Level 2 Undersink Filter Replacement Cartridge
  12. D-40 Culligan Level 4 Undersink Filter Replacement Cartridge
  13. FM-15A Culligan Level 3 On-Tap Faucet Filter System
  14. FM-15RA Culligan Level 3 Faucet Filter Replacement Cartridge
  15. 1000R-D Culligan Level 3 Undersink RV and Marine Icemaker and Drinking Water Filter

    1000R-D Culligan Level 3 Undersink RV and Marine Icemaker and Drinking Water Filter

    Fits Culligan SY1000, SY-1000s, IC-1000, RV-1000, SY-750s, IC-750, and RV-750 filter systems Learn More
    $29.99
  16. Culligan Preferred Series 350 Water Filtration System

    Culligan Preferred Series 350 Water Filtration System

    Reduces up to 99.9% of particles from your drinking water Learn More
    $88.99
  17. 750R-D Culligan Level 1 Undersink RV and Marine Icemaker and Drinking Water Filter

    750R-D Culligan Level 1 Undersink RV and Marine Icemaker and Drinking Water Filter

    Fits Culligan SY-750s, RV-750, IC-750, SY-1000, SY-1000s, RV-1000, and IC-1000 filter systems Learn More
    $15.99
  18. C-2 Culligan RV Filter Replacement Cartridge (2-Pack)

    C-2 Culligan RV Filter Replacement Cartridge (2-Pack)

    Fits Culligan US-316 and most 4 7/8-inch x 2 1/2-inch size water filters Learn More
    $12.59
  19. P1012581 Culligan Undersink Replacement Filter Cartridge

    P1012581 Culligan Undersink Replacement Filter Cartridge

    Fits the Culligan 201 Under Sink Water Filter System Learn More
    $33.99
  20. IC-1000 Culligan Inline Filter
  21. IC-100A Culligan Level 1 Disposable Inline Filter
  22. IC-750 Culligan Inline Filter
  23. IC-EZ-1 Culligan Level 1 Easy-Change Inline Filter System
  24. IC-EZ-3 Culligan Level 3 Easy-Change Inline Filter System
  25. IC-EZ-4 Culligan Level 4 Easy-Change Inline Filter System