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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. ZR-001 ZeroWater Replacement Filter Cartridge

    ZR-001 ZeroWater Replacement Filter Cartridge

    Fits ZeroWater brand pitchers, dispensers and water cooler bottles Learn More
    $19.99 Retail Price:  $20.69
  2. ZR-006 ZeroWater Replacement Filter Cartridge (4-Pack)

    ZR-006 ZeroWater Replacement Filter Cartridge (4-Pack)

    Fits ZeroWater brand pitchers, dispensers and water cooler bottles Learn More
    $55.99 Retail Price:  $58.34
  3. ZR-008 ZeroWater Replacement Filter Cartridge (8-Pack)

    ZR-008 ZeroWater Replacement Filter Cartridge (8-Pack)

    Fits ZeroWater brand pitchers, dispensers and water cooler bottles Learn More
    $98.99 Retail Price:  $106.94
  4. ZR-017 ZeroWater Replacement Filter Cartridge (2-Pack)

    ZR-017 ZeroWater Replacement Filter Cartridge (2-Pack)

    Fits ZeroWater brand pitchers, dispensers and water cooler bottles Learn More
    $33.99
  5. AF-10-3690 Aries Replacement Fluoride Filter Cartridge

    AF-10-3690 Aries Replacement Fluoride Filter Cartridge

    Fits most standard housings that accept 10-inch x 2.5-inch water filter cartridges Learn More
    $27.99 Retail Price:  $32.19
  6. HF8-S Cuno Whole House Filter Replacement Cartridge

    HF8-S Cuno Whole House Water Filter Cartridge

    Fits the Cuno Food Service SF18-S for high-temperature equipment Learn More

    Regular Price: $50.99

    Special Price: $39.05

  7. SWC1350 Cuno Whole House Filter Replacement Cartridge

    SWC1350 Cuno Whole House Water Filter Cartridge

    For use with the Cuno Food Service CFS6090-C and CFS6135-C Water Treatment Systems Learn More
    $67.99 Retail Price:  $81.64
  8. 7DM Everpure Replacement Filter Cartridge

    7DM Everpure Replacement Filter Cartridge

    Fits the Everpure 7-DM demineralizing system for low-capacity flash steamers and warmers Learn More
    $93.99 Retail Price:  $128.79
  9. 22017 Hydrologic Replacement De-Ionization Cartridge

    22017 Hydrologic Deionization Filter Cartridge

    Fits 10 inch by 4.5 inch filtration system housings Learn More
    $56.99 Retail Price:  $71.29
  10. PCF1-10MB Pentek Whole House Filter Replacement Cartridge

    PCF1-10MB Pentek Whole House Filter Replacement Cartridge

    Fits any standard housing that uses 9 3/4-inch x 2 1/2-inch replacement filter cartridges Learn More
    $25.99 Retail Price:  $30.69
  11. 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 Retail Price:  $49.67
  12. WS-10 Pentek Water Softening Filter

    WS-10 Pentek Water Softening Filter

    Fits most standard housings that accept 10-inch x 2.5-inch water filter cartridges Learn More
    $20.99 Retail Price:  $24.83
  13. 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 Retail Price:  $35.64
  14. WS-20BB Pentek Whole House Filter Replacement Cartridge

    WS-20BB Pentek Whole House Filter Replacement Cartridge

    Fits any standard housing that uses 20-inch x 4 1/2-inch filter cartridges Learn More
    $46.99 Retail Price:  $52.08
  15. ZD-010 ZeroWater Water Pitcher
  16. ZD-013 ZeroWater Water Pitcher
  17. ZD-018 ZeroWater Water Dispenser
  18. K5562-BB-NRW37 Omnipure Deionization Inline Filter

    K5562-BB-NRW37 Omnipure Deionization Inline Filter

    Fits standard 1/4-inch water lines Learn More
    $22.99 Retail Price:  $25.29
  19. Q5754-C100E Omnipure Water Softening Filter

    Q5754-C100E Omnipure Water Softening Filter

    Fits the Omnipure Q-Series Twist-Tap Filter Heads Learn More
    $19.99 Retail Price:  $25.29
  20. BBF1-20MB Pentek Whole House Filter Replacement Cartridge

    BBF1-20MB Pentek Whole House Filter Replacement Cartridge

    Fits any standard housing that uses 20-inch x 4 1/2-inch filter cartridges Learn More
    $92.99 Retail Price:  $112.23
  21. ZJ-003 ZeroWater Water Cooler Bottle Filtration System

    ZJ-003 ZeroWater Water Cooler Filter System

    Fits most standard office water coolers Learn More
    $69.99 Retail Price:  $82.79
  22. ZP-006 ZeroWater 6-cup Space Saver Water Pitcher - Blue
  23. K2555-BB Omnipure Deionization Inline Water Filter

    K2555-BB Omnipure Deionization Inline Water Filter

    Sized 2 inches W x 10 inches L; 1/4 inch FPT Learn More
    $19.99 Retail Price:  $25.29
  24. AF-10-3695 Aries Arsenic Removal Water Filter

    AF-10-3695 Aries Arsenic Removal Water Filter

    Sized 10 x 2.5 inches Learn More
    $47.99 Retail Price:  $77.04
  25. CQE-RC-04016 Crystal Quest Multi Stage PLUS Water Filter Cartridge

    CQE-RC-04016 Crystal Quest Multi Stage PLUS Water Filter Cartridge

    For use primarily in Crystal Quest low flow countertop and undersink filtration systems. Also fits select refrigerator water filtration systems. Sized 2 7/8 inches by 20 inches. Learn More
    $138.99 Retail Price:  $178.24

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