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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. RWC-5 Culligan Level 1 Undersink Filter Replacement Cartridge

    RWC-5 Culligan Level 1 Undersink Filter Replacement Cartridge

    Fits Culligan Fulflo, WC12, LCA, WS-12, and any brand of water filter system that uses standard 9 3/4 x 2 1/2 filter cartridges Learn More
    (Retail Price: $17.24 ) $15.99
  2. S1A-D Culligan Level 2 Whole House Filter Replacement Cartridge (2-Pack)

    S1A-D Culligan Level 2 Whole House Filter Replacement Cartridge (2-Pack)

    Fits Culligan HF-150, HF-160, HF-360, HF-365, and any brand of whole house water filter system that uses standard 9 3/4 x 2 1/2 filter cartridges Learn More
    $11.99
  3. SW-3 Culligan Whole House Filter Wrench

    SW-3 Culligan Whole House Filter Wrench

    For use with Culligan and Pentek Big Blue whole house water filtration systems Learn More
    $13.99
  4. SW-5 Culligan Undersink Filter Wrench

    SW-5 Culligan Undersink Water Filter Wrench

    For use with Culligan and Ametek undersink water filtration systems Learn More
    $10.99
  5. RV-BYP-EZ Culligan RV Bypass Fitting Adapter

    RV-BYP-EZ Culligan RV Bypass Fitting Adapter

    Fits Culligan Easy-Change filter systems including RV-EZ-1, RV-EZ-2, and RV-EZ-4 Learn More
  6. R50-BBSa-D Culligan Level 1 Whole House Filter Replacement Cartridge

    R50-BBSa-D Culligan Whole House Water Filter Replacement Cartridge

    Fits into the Culligan HD-950 whole house water filtration system and any other brand of filtration systems that uses standard 9 3/4 x 4 1/2 filter cartridges Learn More
    (Retail Price: $17.47 ) $15.99
  7. 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
    (Retail Price: $22.99 ) $15.99
  8. RV-500A Culligan Level 1 Inline RV Pre-Tank Exterior Filter

    RV-500A Culligan Level 1 Inline RV Pre-Tank Exterior Filter

    Fits a standard 3/4-inch garden hose Learn More
  9. TK-2 Culligan Water Test Kit
  10. 00401538 Culligan String Wound Sediment Filter

    00401538 Culligan String Wound Sediment Filter

    Built for use in Culligan AC50, AC30, AC15, H83 whole house water filtration systems and H53 reverse osmosis systems Learn More
  11. FM-25R Culligan Replacement Faucet Filter

    FM-25R Culligan Replacement Faucet Filter

    Fits onto Culligan FM-25 water faucet filtration systems Learn More
    (Retail Price: $24.99 ) $14.99
  12. WHR-140 Culligan Level 2 Shower Filter Replacement Cartridge

    WHR-140 Culligan Level 2 Shower Filter Replacement Cartridge

    Fits Culligan ISH-100, WSH-C125, HSH-C135, and RDSH-C115 shower filters Learn More
    (Retail Price: $19.54 ) $13.99
  13. D-28 Culligan Level 1 Undersink Filter Replacement Cartridge

    D-28 Culligan Level 1 Undersink Filter Replacement Cartridge

    Fits Culligan US-550, US-600, US-600A, and any brand of water filter system that uses standard 9 3/4 x 2 1/2 filter cartridges Learn More
  14. D-30 Culligan Level 2 Undersink Filter Replacement Cartridge
  15. FM-15RA Culligan Level 3 Faucet Filter Replacement Cartridge
  16. FVK-100 Culligan Inline Water Filter Flush Valve Kit

    FVK-100 Culligan Inline Water Filter Flush Valve Kit

    Fits Culligan in-line refrigerator filters including IC-750 and IC-1000 Learn More
    (Retail Price: $19.54 ) $14.99
  17. D-20A Culligan Level 1 Undersink Water Filter Replacement Cartridge
  18. D-15 Culligan Level 1 Undersink Filter Replacement Cartridge (2-Pack)

    D-15 Culligan Level 1 Undersink Filter Replacement Cartridge (2-Pack)

    Fits Culligan US-550, US-600, US-600A, RO-3000, RO-3500, RVF-10 and any brand of water filtration system that uses standard 9 3/4 x 2 1/2 filter cartridges Learn More
    (Retail Price: $25.29 ) $17.99
  19. 01013028 Culligan Water Tower Sediment Filter Cartridge

    01013028 Culligan Water Tower Sediment Filter Cartridge

    Fits the Culligan Water Tower and similar reverse osmosis systems from other manufacturers Learn More
  20. 01013029 Culligan Reverse Osmosis Filter Cartridge

    01013029 Culligan Reverse Osmosis Filter Cartridge

    Fits the Culligan Water Tower and similar reverse osmosis systems from other manufacturers Learn More
  21. 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
    (Retail Price: $17.93 ) $15.99
  22. BF-34 Culligan Brass Fitting Kit

    BF-34 Culligan Brass Fitting Kit

    Fits 1/2-inch and 3/4-inch pipe Learn More
  23. 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
  24. CP5-BBS-D Culligan Level 4 Whole House Filter Replacement Cartridge
  25. D-10-TWIN Culligan Level 1 Undersink Filter Replacement Cartridge (2-Pack)

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