Discount Water Filters and Air Filters at Discount Filter Store.com

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Water Filtration Systems & Filters

Discount Filter Store carries a wide variety of water filters and filtration systems to make sure that you have clean water everywhere you need it. We offer camping water filters, RV filters, water bottles for travelers on the go. Purify your office or home’s drinking water with countertop filter systems, commercial grade filters, and whole house filter systems. Our filters are protected by our 100% Price Match Guarantee. We are happy to offer you the lowest possible price on our filters, matching any lower price listed by competitors.

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  1. EP15 3M Aqua-Pure Whole House Water Filter

    EP15 3M Aqua-Pure Whole House Water Filter Cartridge

    For use in 3M Aqua-Pure and Everpure whole house water filtration systems Learn More
    $69.99 MSRP:  $82.79
  2. EP25 3M Aqua-Pure Whole House Water Filter

    EP25 3M Aqua-Pure Whole House Water Filter Cartridge

    Fits the 3M Aqua-Pure/Everpure H-104, H-200 and H-220 whole house water filtration systems Learn More
    $91.99 MSRP:  $111.54
  3. P-124B Cuno Whole House Filter Replacement Cartridge

    P-124B Cuno Whole House Water Filter Cartridge

    Fits the Cuno Food Service ScaleGuard Pro Softening Systems SGP-124B and SGP-248B Learn More
    $97.05 MSRP:  $128.79
  4. SWC1350-C Cuno Whole House Filter Replacement Cartridge

    SWC1350-C Cuno Whole House Water Filter Cartridge

    Fits the Cuno Food Service CFS6090-C and CFS6135-C Water Treatment Systems Learn More
    $60.99 MSRP:  $81.64
  5. W9122021 Doulton SuperCarb Replacement Ceramic Water Filter

    W9122021 Doulton SuperCarb Replacement Ceramic Water Filter

    Fits pressurized Doulton short mount Countertop, Undersink and Inline Water Filtration Systems Only Learn More
    $37.00 MSRP:  $54.26
  6. W9123019 Doulton UltraCarb SI Ceramic Filter Candle

    W9123019 Doulton UltraCarb SI Ceramic Filter Candle

    Fits all Doulton Short Mount Countertop, Undersink and Inline Water Filtration Systems Learn More
    $41.00 MSRP:  $66.48
  7. PCF1-20MB Pentek Whole House Filter Replacement Cartridge

    PCF1-20MB Pentek Whole House Filter Replacement Cartridge

    Fits any standard housing that uses 20-inch x 2 1/2-inch replacement filter cartridges Learn More
    $42.99 MSRP:  $49.67
  8. WS-20 Pentek Water Softening Filter

    WS-20 Pentek Water Softening Filter

    Fits most standard housings that accept 20-inch x 2.5-inch water filter cartridges Learn More
    $26.99 MSRP:  $35.64
  9. OT32-S-05 OmniFilter Whole House Filter System

    OT32-S-05 OmniFilter Undersink Water Filtration System

    Fits standard 1/2-inch NPS supply threads Learn More
    $112.99 MSRP:  $132.24
  10. CQE-RC-04020 Crystal Quest Nitrate Water Filter Cartridge
  11. 655130-43/DFX-CB-10 Pentek Diamond Polyspun Carbon Block Replacement

    655130-43/DFX-CB-10 Pentek Diamond Polyspun Carbon Block Replacement

    Fits housings that take filters sized 10 x 2-1/2 Learn More
    $13.99 MSRP:  $18.99
  12. LSB4 Lifesaver 4000UF Water Bottle
  13. LSB6 Lifesaver 6000UF Water Bottle
  14. LSJC10 Lifesaver 10000UF Jerrycan
  15. LSJC20 Lifesaver 20000UF Jerrycan
  16. 600R American Plumber Undersink Filter Replacement Cartridge

    600R American Plumber Undersink Water Filter Cartridge

    Built to fit into American Plumber WIC-600 and DW-600 undersink water filtration systems Learn More
    $31.99 MSRP:  $35.06
  17. DW-2000-RB American Plumber Replacement Filter Cartridge

    DW-2000-RB American Plumber Replacement Filter Cartridge

    Fits American Plumber DW-1200, DW-2000 and select Culligan systems Learn More
    $59.99 MSRP:  $61.28
  18. WIC-600 American Plumber Undersink Filter System

    WIC-600 American Plumber Undersink Filter System

    Fits any 1/4-inch water line Learn More
    $55.99 MSRP:  $58.34
  19. WIC-6A American Plumber Inline Icemaker Filter
  20. WICA American Plumber Inline Filter with 1/4 inch Quick-Connect Fittings

    WICA American Plumber Inline Filter with 1/4 inch Quick-Connect Fittings

    Fits any 1/4-inch water line Learn More
    $14.09 MSRP:  $18.50
  21. 110720 Amway eSpring UV Water Purification System

    110720 Amway eSpring UV Water Purification System

    Fits standard 3/8-inch outside diameter x 1/4-inch inside diameter plastic or copper water line Learn More
  22. 3M Aqua-Pure AP717 Inline Water Filter

    AP717 3M Aqua-Pure Inline Filter System

    Fits any 1/4-inch plastic or copper water line Learn More
    $31.99 MSRP:  $34.49
  23. 3M Aqua-Pure AP-C77 Undersink Filter Replacement Cartridge

    AP-C77 3M Aqua-Pure Undersink Filter Replacement Cartridge

    Fits 3M Aqua-Pure undersink water filter systems Learn More
  24. 3M Aqua-Pure AP-C78 Water Filter Replacement Cartridge

    AP-C78 3M Aqua-Pure Undersink Filter Replacement Cartridge

    Fits 3M Aqua-Pure undersink water filter systems Learn More
  25. 3M Aqua-Pure APIL3R Inline Water Filter

    APIL3R 3M Aqua-Pure Inline Water Filter Cartridge

    Fits the 3M Aqua-Pure APIL3 inline water filtration system Learn More

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