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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. 4373529 Whirlpool Undersink Filter Replacement Cartridge

    4373529 Whirlpool Undersink Filter Replacement Cartridge

    Fits Whirlpool WSC100 filter system Learn More
    $43.99 Retail Price:  $50.59
  2. 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 Retail Price:  $35.06
  3. 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 Retail Price:  $61.28
  4. 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 Retail Price:  $58.34
  5. 110194 Amway eSpring Replacement Filter Cartridge

    110194 Amway eSpring Replacement Filter Cartridge

    Fits the eSpring Carbon Water Treatment System Learn More
  6. 67001 Aquamira Water Bottle Replacement Filter Cartridge

    67001 Aquamira Water Bottle Replacement Filter Cartridge

    Fits Aquamira Filter Bottle or Nalgene Sport Bottle Learn More
  7. 67002 Aquamira Watter Bottle and Filter System
  8. 67003 Aquamira Frontier Sport Water Bottle Replacement Filter Cartridge - front

    67003 Aquamira Frontier Sport Water Bottle Filter

    Regular Price: $12.95

    Special Price: $11.05

  9. 67005 Aquamira Frontier Emergency Water Filter System
  10. 67006 Aquamira Frontier Pro Portable Emergency Filter System
  11. 67011 / CR-100 Aquamira Water Bottle Replacement Filter Capsule - front

    67011 / CR-100 Aquamira Filtered Water Bottle Capsule

    Fits Aquamira filtered water bottles with patented Bite Me valve Learn More
    $12.95 Retail Price:  $17.19
  12. 67015 Aquamira Filtered Water Bottle - 1

    Aquamira Filtered Water Bottle (#67015)

    $27.95 Retail Price:  $34.44
  13. 67106 Aquamira Frontier Pro Portable Filter System (Military)
  14. 67108 Aquamira Frontier Sport Water Bottle Replacement Filter Cartridge (Military) - front
  15. 3M Aqua-Pure AP22 Under Sink Water Filter

    AP22 3M Aqua-Pure Replacement Undersink Water Filter Cartridge

    Fits 3M Aqua-Pure undersink water filtration systems Learn More
    $61.99 Retail Price:  $75.89
  16. 3M Aqua-Pure AP815 Whole House Water Filter

    AP815 3M Aqua-Pure Whole House Filter Replacement Cartridge

    Fits any brand of whole house water filter system that uses standard 9 3/4 x 4 1/2 filter cartridges Learn More
  17. 3M Aqua-Pure AP815-2 Whole House Water Filter

    AP815-2 3M Aqua-Pure Whole House Filter Replacement Cartridge

    Fits 3M Aqua-Pure whole house water filter systems Learn More
  18. 3M Aqua-Pure AP917R Water Filter Cartridge

    AP917R 3M Aqua-Pure Replacement Filter Cartridge

    Fits the 3M Aqua-Pure AP903 Water Filtration System Learn More
  19. 3M Aqua-Pure AP-DW85 Water Filter Replacement Cartridge

    AP-DW85 3M Aqua-Pure Undersink Filter Replacement Cartridge

    Fits 3M Aqua-Pure undersink water filter systems Learn More
    $54.99 Retail Price:  $55.19
  20. C-COMPLETE 3M Aqua-Pure Undersink Water Filter

    C-COMPLETE 3M Aqua-Pure Undersink Water Filter Cartridge

    Fits the 3M Aqua-Pure Easy Complete Drinking Water Filtration System Learn More
    $66.99 Retail Price:  $88.54
  21. C-CS-FF 3M Aqua-Pure Undersink Water Filter

    C-CS-FF 3M Aqua-Pure Undersink Water Filter Cartridge

    Fits the 3M Aqua-Pure Easy Full Flow Drinking Water Filtration System Learn More
    $43.99 Retail Price:  $48.06
  22. C-CYST-FF 3M Aqua-Pure Undersink Water Filter

    C-CYST-FF 3M Aqua-Pure Undersink Water Filter Cartridge

    Fits the 3M Aqua-Pure Easy Cyst-FF Replacement System and Easy Full Flow Drinking Water System Learn More
    $52.99 Retail Price:  $56.34
  23. WI-BG12000C Body Glove Replacement Filter Cartridge

    WI-BG12000C Body Glove Replacement Filter Cartridge

    Fits the Body Glove BG-12000 Water Filter System Learn More
    $290.21 Retail Price:  $330.82
  24. WI-BG3000C Body Glove Replacement Filter Cartridge

    WI-BG3000C Body Glove Replacement Filter Cartridge

    Fits the Body Glove BG-3000 Water Filter System Learn More
    $151.46 Retail Price:  $173.86
  25. WI-BG3000R Body Glove Replacement Filter Cartridge

    WI-BG3000R Body Glove Replacement Filter Cartridge

    Fits existing Everpure C-300 Filtration Systems Learn More
    $138.71 Retail Price:  $159.10

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