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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. HF10-MS Cuno Whole House Filter Replacement Cartridge

    HF10-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

    Regular Price: $65.99

    Special Price: $50.05

  2. 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

  3. C-LC 3M Aqua-Pure Undersink Water Filter

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

    Fits the 3M Aqua-Pure Easy Drinking Water System, Easy LC and Easy LP Replacement Systems Learn More
    $50.99 Retail Price:  $65.54
  4. CB3 OmniFilter Undersink Filter Replacement Cartridge

    CB3-SS6-06 OmniFilter Undersink Filter Replacement Cartridge

    Fits any brand of undersink water filter system that uses standard 9 3/4 x 2 1/2 filter cartridges Learn More
    $50.99
  5. HM8-CM Sprite PureMist Filtered Shower Handle - Chrome

    HM8-CM Sprite PureMist Filtered Shower Handle (Chrome)

    Fits most residential showers and baths Learn More
  6. W9223021 Doulton Ceramic Water Filter

    W9223021 Doulton Ultracarb Ceramic Water Filter

    Replacement cartridge for water filtration systems that are included with Franke Triflow faucets Learn More
    $50.99 Retail Price:  $70.14
  7. CQE-SP-00804 Crystal Quest Luxury Handheld Shower Filter System

    CQE-SP-00804 Crystal Quest Luxury Handheld Shower Filter System (White)

    Fits onto existing shower lines Learn More
    $50.99 Retail Price:  $60.94
  8. FM-5 Culligan Level 3 On-Tap Faucet Filter System
  9. 153070 Pentek Filter Housing Sump

    153070 Pentek Filter Housing Sump

    Fits the cap of #20 Big Blue (not clear) housings of any inlet or outlet size Learn More
    $51.99 Retail Price:  $57.95
  10. 3G-STANDARD-20-CLEAR-PR20 Pentek Whole House 20 inch Filter Housing
  11. RC-5 Rainshow’r Replacement Water Filter

    RC-5 Rainshow’r Replacement Water Filter

    Fits into the C-100 Condor or BT-100 Breakthrough water filtration systems by Rainshow'r Learn More
    $51.99 Retail Price:  $65.99
  12. 4373575 Whirlpool Undersink Filter Kit

    4373575 Whirlpool Undersink Filter Kit

    Fits Whirlpool WSR413 and WSC200YW filter systems Learn More

    Regular Price: $59.99

    Special Price: $52.05

  13. 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

  14. 3M Aqua-Pure AP317 Water Filter Replacement Cartridge

    AP317 3M Aqua-Pure Undersink Filter Replacement Cartridge

    Fits 3M Aqua-Pure undersink water filter systems Learn More
    $52.99 Retail Price:  $66.69
  15. 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
  16. EV9612-71 Everpure 4K Plus Replacement Filter Cartridge

    EV9612-71 Everpure 4K Plus Replacement Filter Cartridge

    Fits Everpure filter heads including models QL1, QL2, QL3, and QL3B Learn More
    $52.99 Retail Price:  $59.79
  17. FQROPF GE Profile SmartWater Ultra Plus Reverse Osmosis Filter Set

    FQROPF GE Profile SmartWater Ultra Plus Reverse Osmosis Filter Set

    Fits GE Profile SmartWater Ultra Plus reverse osmosis filter systems Learn More
    $52.99 Retail Price:  $61.97
  18. W9221000 Doulton Replacement Ceramic Filter

    W9221000 Doulton SuperSterasyl Replacement Ceramic Filter

    Fits most standard 2.5-inch by 10-inch filter housings Learn More
    $52.99 Retail Price:  $59.59
  19. W9121302 Doulton Imperial Supersterasyl Undersink Ceramic Candle Replacement Filter Cartridge

    W9121302 Doulton Imperial Supersterasyl Undersink Ceramic Candle Replacement Filter Cartridge

    Fits all Doulton Gravity systems Learn More
    $52.99 Retail Price:  $59.70
  20. TFM-36-EB Desal Reverse Osmosis Membrane

    TFM-36-EB Desal Reverse Osmosis Membrane

    Fits Desal reverse osmosis systems that use part #'s 1220549, TFM-36-EB and TFM-36-EN Learn More
    $52.99 Retail Price:  $79.34
  21. CTW-10-WF Tier1 Countertop Water Filter System

    CTW-10-WF Tier1 Countertop Water Filter System

    Fits onto virtually any faucet. Uses a 10 x 2.5 water filter cartridge, sold separately. Learn More
    $52.99 Retail Price:  $63.24
  22. Body Glove Water Filter Pitcher (#WI-BG-PITCHER)

    Body Glove Water Filter Pitcher (#WI-BG-PITCHER)

    Comes complete with a water filter Tested and Certified against NSF/ANSI Standards 42 & 53 Learn More
    $52.99 Retail Price:  $75.00
  23. 3M Aqua-Pure AP111-2 Whole House Water Filter

    AP111-2 3M Aqua-Pure Whole House Filter Replacement Cartridge

    Fits 3M Aqua-Pure whole house water filter systems Learn More
  24. 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
  25. W9122190 Doulton SuperCarb SI Replacement Element

    W9122190 Doulton SuperCarb SI Ceramic Water Filter

    Fits all Doulton short mount Countertop, Undersink and Inline Water Filtration Systems Learn More
    $53.99 Retail Price:  $60.21

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