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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.

Items 1 to 25 of 68 total

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  1. 55898C Halsey-Taylor Drinking Fountain Filter Replacement Cartridge

    55898C Halsey-Taylor Water Filter Cartridge Replacement

    Fits the Halsey Taylor Hydroboost and the Elkay EZH2O bottle filling station Learn More
    $189.99
  2. 31050 Hydrologic TallBoy Sediment Filter & Dechlorinator

    31050 Hydrologic TallBoy Sediment Filter & Dechlorinator

    Built with a two-stage filtration and protected by a one year limited warranty Learn More
    $153.99 Retail Price:  $183.95
  3. RFC-BBS-D Culligan Comparable Whole House Carbon Water Filter by Tier1
  4. BW60-1812-75 Filmtec Reverse Osmosis Membrane

    BW60-1812-75 Filmtec Reverse Osmosis Membrane

    Fits reverse osmosis systems from various brands Learn More
    $44.99 Retail Price:  $47.34
  5. EV9693-01 Everpure Chloramine Reduction Water Filter Replacement
  6. EPM-BB Pentek Comparable Whole House Water Filter by Tier1 (6-Pack)

    EPM-BB Pentek Comparable Whole House Water Filter by Tier1 (6-Pack)

    Fits most standard 10-inch housings Learn More

    $96.99

  7. AWP117 Viqua Carbon Block Filter for S2Q-DWS UV System

    AWP117 Viqua Carbon Block Filter for S2Q-DWS UV System

    For use with Viqua UltraViolet Disinfection Systems requiring 10 x 2.5-inch filter pre-treatment. Learn More
    $10.99 Retail Price:  $15.99
  8. Omnipure ELF-10M-P Carbon Block with Polyphosphate

    Omnipure ELF-10M-P Carbon Block with Polyphosphate

    Proprietary design fits Omnipure ELF and E series valve heads Learn More
    $47.99 Retail Price:  $50.34
  9. WGCHD American Plumber Undersink Water Filter Replacement Cartridge

    WGCHD American Plumber Undersink Filter Replacement Cartridge

    Fits American Plumber W10-PR and W15-PR and most other heavy duty water filter housings Learn More
    $34.99 Retail Price:  $48.29
  10. 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
  11. 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
  12. CQE-CO-02025 Crystal Quest Commercial Reverse Osmosis Filter System
  13. CFS8110 Cuno Whole House Filter Replacement Cartridge

    CFS8110 Cuno Whole House Filter Replacement Cartridge

    Fits any filtration system that uses the Cuno 8000 Series Replacement Cartridges Learn More
    $56.99 Retail Price:  $61.97
  14. CFS8112 Cuno Whole House Filter Replacement Cartridge

    CFS8112 Cuno Whole House Filter Replacement Cartridge

    Fits any filtration system that uses the Cuno 8000 Series Replacement Cartridges Learn More
    $69.99
  15. CFS8112-S Cuno Whole House Filter Replacement Cartridge

    CFS8112-S Cuno Whole House Filter Replacement Cartridge

    Fits any filtration system that uses the Cuno 8000 Series Replacement Cartridges Learn More
    $72.99 Retail Price:  $94.29
  16. CFS8720 Cuno Whole House Filter Replacement Cartridge

    CFS8720 Cuno Whole House Filter Replacement Cartridge

    Fits any filtration system that uses the Cuno 8000 Series Replacement Cartridges Learn More
    $57.99 Retail Price:  $61.97
  17. CFS8720-S Cuno Whole House Filter Replacement Cartridge

    CFS8720-S Cuno Whole House Filter Replacement Cartridge

    Fits any filtration system that uses the Cuno 8000 Series Replacement Cartridges Learn More
    $64.99
  18. CFS8812X Cuno Whole House Filter Replacement Cartridge

    CFS8812X Cuno Whole House Filter Replacement Cartridge

    Fits any filtration system that uses the Cuno 8000 Series Replacement Cartridges Learn More
    $72.99
  19. CFS8812X-S Cuno Whole House Filter Replacement Cartridge

    CFS8812X-S Cuno Whole House Filter Replacement Cartridge

    Fits any filtration system that uses the Cuno 8000 Series Replacement Cartridges Learn More
    $74.99 Retail Price:  $77.04
  20. CFS9112 Cuno Whole House Filter Replacement Cartridge

    CFS9112 Cuno Whole House Filter Replacement Cartridge

    Fits any filtration system that uses the Cuno 9000 Series Replacement Cartridges or the Everpure QL Series filter heads Learn More

    Regular Price: $64.99

    Special Price: $52.05

  21. CFS9720 Cuno Whole House Filter Replacement Cartridge

    CFS9720 Cuno Whole House Filter Replacement Cartridge

    Fits any filtration system that uses the Cuno 9000 Series Replacement Cartridges or the Everpure QL Series filter heads Learn More

    Regular Price: $54.99

    Special Price: $45.05

  22. CFS9812X Cuno Whole House Filter Replacement Cartridge

    CFS9812X Cuno Whole House Filter Replacement Cartridge

    Fits any filtration system that uses the Cuno 9000 Series Replacement Cartridges or the Everpure QL Series filter heads Learn More
    $66.99 Retail Price:  $72.09
  23. CFS9812X-S Cuno Whole House Filter Replacement Cartridge

    CFS9812X-S Cuno Whole House Filter Replacement Cartridge

    Fits any filtration system that uses the Cuno 9000 Series Replacement Cartridges or the Everpure QL Series filter heads Learn More
    $65.99 Retail Price:  $78.19
  24. HF20 Cuno Whole House Filter Replacement Cartridge

    HF20 Cuno Whole House Filter Replacement Cartridge

    Fits the Cuno Food Service High Flow Series Models including all SGP, ESP, BREW, BEV, and ICE Systems Learn More

    Regular Price: $64.99

    Special Price: $50.05

  25. HF20-MS Cuno Whole House Filter Replacement Cartridge

    HF20-MS Cuno Whole House Filter Replacement Cartridge

    Fits the Cuno Food Service High Flow Series Models including all SGP, ESP, BREW, BEV, and ICE Systems Learn More
    $73.99

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