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  • Our products are price match guaranteed!
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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. W5CIP American Plumber Undersink Filter Replacement Cartridge (2-Pack)

    W5CIP American Plumber Undersink Filter Replacement Cartridge (2-Pack)

    Fits American Plumber W38-PR and most standard size water filter housings Learn More
    $21.99 Retail Price:  $24.34
  2. WRC25HD American Plumber Whole House Heavy Duty Filter Cartridge

    WRC25HD American Plumber Whole House Heavy Duty Filter Cartridge

    Fits American Plumber W10-PR and W15-PR and most other heavy duty water filter housings Learn More
    $36.99 Retail Price:  $40.24
  3. WRC25HD20 American Plumber Whole House 20-inch Heavy Duty Filter Cartridge

    WRC25HD20 American Plumber Whole House 20-inch Heavy Duty Filter Cartridge

    Fits American Plumber W2010-PR and W2015-PR and most other heavy duty water filter housings Learn More
    $71.99 Retail Price:  $78.19
  4. 3M Aqua-Pure AP117 Whole House Water Filter Cartridge

    AP117 3M Aqua-Pure Whole House Filter Replacement Cartridge

    Fits any brand of whole house water filter system that uses standard 9 3/4 x 2 1/2 filter cartridges Learn More
    $28.99 Retail Price:  $36.67
  5. 3M Aqua-Pure APS117 Whole House Water Filter Replacement Cartridge

    APS117 3M Aqua-Pure Whole House Filter Replacement Cartridge

    Fits any brand of whole house water filter system that uses standard 9 3/4 x 2 1/2 filter cartridges Learn More
    $34.99 Retail Price:  $40.81
  6. 42622 Brita On-Tap FF-100 Faucet Filter System - Chrome
  7. 42617 Brita On-Tap FR-200 Faucet Filter Replacement Cartridge - Chrome

    42617 Brita On-Tap FR-200 Faucet Filter Replacement Cartridge - Chrome

    Fits all Brita "On-Tap" faucet mounted water filter systems (regardless of finish) Learn More
    $24.99 Retail Price:  $25.29
  8. 42618 Brita On-Tap FR-200 Faucet Filter Replacement Cartridge - Chrome (2-Pack)

    42618 Brita On-Tap FR-200 Faucet Filter Replacement Cartridge - Chrome (2-Pack)

    Fits all Brita "On-Tap" faucet mounted water filter systems (regardless of finish) Learn More
    $35.99 Retail Price:  $41.39
  9. 42401 Brita On-Tap FR-200 Faucet Filter Replacement Cartridge - White

    42401 Brita On-Tap FR-200 Faucet Filter Replacement Cartridge - White

    Fits all Brita "On-Tap" faucet mounted water filter systems (regardless of finish) Learn More
    $23.99 Retail Price:  $25.29
  10. 42402 Brita On-Tap FR-200 Faucet Filter Replacement Cartridge - White (2-Pack)

    42402 Brita On-Tap FR-200 Faucet Filter Replacement Cartridge - White (2-Pack)

    Fits all Brita "On-Tap" faucet mounted water filter systems (regardless of finish) Learn More
    $32.99 Retail Price:  $42.54
  11. HSH-C135 Culligan Handheld Filtered Shower Head with Massage

    HSH-C135 Culligan Handheld Filtered Shower Head with Massage

    Fits any standard 1/2-inch threaded shower arm Learn More
    $46.99 Retail Price:  $57.49
  12. WHR-140 Culligan Level 2 Shower Filter Replacement Cartridge

    WHR-140 Culligan Level 2 Shower Filter Replacement Cartridge

    Fits Culligan ISH-100, WSH-C125, HSH-C135, and RDSH-C115 shower filters Learn More
    $13.99 Retail Price:  $19.54
  13. WSH-C125 Culligan Filtered Shower Head with Massage Feature

    WSH-C125 Culligan Filtered Shower Head with Massage Feature

    Fits any standard 1/2-inch threaded shower arm Learn More
    $34.99 Retail Price:  $39.66
  14. CFS01S Cuno Whole House Filter Housing

    CFS01S Cuno Whole House Water Filter Housing

    $134.99 Retail Price:  $152.94
  15. CFS02S Cuno Whole House Filter Housing

    CFS02S Cuno Whole House Water Filter Housing

    $184.49 Retail Price:  $214.46
  16. CFS11S Cuno Whole House Filter Housing

    CFS11S Cuno Whole House Filter Housing

    $95.99 Retail Price:  $101.19
  17. HF60-S Cuno Whole House Filter Replacement Cartridge

    HF60-S 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
    $138.99 Retail Price:  $160.99
  18. HF65 Cuno Whole House Filter Replacement Cartridge

    HF65 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
    $127.99 Retail Price:  $148.80
  19. HF65-S Cuno Whole House Filter Replacement Cartridge

    HF65-S 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: $133.99

    Special Price: $112.05

  20. EV9324-02 Everpure Ice Machine Filter System

    EV9324-02 Everpure Ice Machine Filter System

    Fits standard 3/8-inch water lines Learn More
    $376.99 Retail Price:  $450.79
  21. EV9797-21 Everpure Commercial Filter System

    EV9797-21 Everpure Commercial Filter System

    Fits standard 3/8-inch water lines Learn More
    $599.99 Retail Price:  $692.29
  22. FXHSC GE SmartWater Whole House Filter Replacement Cartridge

    FXHSC GE SmartWater 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
    $22.99 Retail Price:  $25.34
  23. FXHTC GE SmartWater Whole House Filter Replacement Cartridge

    FXHTC GE SmartWater 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
    $41.99 Retail Price:  $42.54
  24. FXWTC GE SmartWater Whole House Filter Replacement Cartridge

    FXWTC GE SmartWater Whole House Filter Replacement Cartridge

    Fits any brand of whole house water filter system that uses standard 9 3/4 x 2 1/2 filter cartridges Learn More
    $17.99 Retail Price:  $20.69
  25. FXSCH GE Shower Replacement Filter Cartridge

    FXSCH GE Shower Replacement Filter Cartridge

    Fits the GE GXSM01HWW shower filter system Learn More
    $14.99 Retail Price:  $18.39

Items 1 to 25 of 135 total

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