Discount Water Filters and Air Filters at Discount Filter Store.com

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Water Filtration Systems, Filters, & Parts

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. W9121214 Doulton ATC Super Sterasyl Ceramic Water Filter

    W9121214 Doulton ATC Super Sterasyl Ceramic Water Filter

    Fits all Doulton Gravity systems Learn More
    $29.00 MSRP:  $47.91
  2. W9223022 Doulton Ultracarb Replacement Ceramic Filter

    W9223022 Doulton Ultracarb Replacement Ceramic Filter

    Fits most standard 2.5-inch by 10-inch filter housings Learn More
    $62.00 MSRP:  $82.65
  3. WQCCC11 Watts Kwik-Change Pre-Carbon Water Filter Cartridge

    WQCCC11 Watts Kwik-Change Pre-Carbon Water Filter Cartridge

    Fits Watts Kwik-Change Drinking Water & Reverse Osmosis Water Filtration Systems Learn More
    $17.99 MSRP:  $25.29
  4. 31051 Hydrologic Triton DI100 Aquarium Reverse Osmosis System
  5. 8014200 Katadyn Exstream XR Ultralight Series 28-Ounce Personal Water Purifier Bottle - Blue
  6. 8014522 Katadyn Micro Ultralight Series 21-Ounce Personal Water Purifier Bottle - Blue
  7. 8017756 Katadyn MyBottle Ultralight Series 24-Ounce Personal Water Purifier Bottle - Blue Splash
  8. 8014235 Katadyn Exstream Ultralight Series 21-Ounce Personal Water Purifier Bottle - Olive
  9. 8014234 Katadyn Exstream XR Ultralight Series 28-Ounce Personal Water Purifier Bottle - Olive
  10. 8014201 Katadyn Exstream Ultralight Series 21-Ounce Personal Water Purifier Bottle - Yellow
  11. LP-40 CUNO Water Factory Commercial Reverse Osmosis Water Filtration System

    LP-40 CUNO Water Factory Commercial Reverse Osmosis Water Filtration System

    Produces up to 40 gallons of the highest quality drinking water daily Learn More
  12. 31035 Hydrologic Stealth-RO100 Reverse Osmosis Filtration System

    31035 Hydrologic Stealth-150 Reverse Osmosis Filtration System

    Customized for gardening and hydroponics. Everything included in the box for quick hook-up. Learn More
    $164.99 MSRP:  $225.00
  13. 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
    $28.99 MSRP:  $32.19
  14. CQE-CT-00142 Crystal Quest Countertop Reverse Osmosis Filter System

    CQE-CT-00142 Crystal Quest Countertop Reverse Osmosis Filter System

    Fits any standard faucet Learn More
    $169.00 MSRP:  $219.99
  15. CQE-RC-04002 Crystal Quest PLUS Multi-Stage Replacement Filter Cartridge

    CQE-RC-04002 Crystal Quest PLUS Multi-Stage Replacement Filter Cartridge

    Fits most standard housings that accept 10-inch x 2.5-inch water filter cartridges Learn More
    $57.00 MSRP:  $66.99
  16. CQE-RC-04008 Crystal Quest Arsenic Filter Cartridge

    CQE-RC-04008 Crystal Quest Arsenic Filter Cartridge

    Fits most standard housings that accept 10-inch x 2.5-inch water filter cartridges Learn More
    $77.00 MSRP:  $103.99
  17. CQE-RC-04049 Crystal Quest Fluoride Multi Replacement Filter Cartridge

    CQE-RC-04049 Crystal Quest Fluoride Multi Replacement Filter Cartridge

    Fits most standard housings that accept 10-inch x 2.5-inch water filter cartridges Learn More
    $57.00 MSRP:  $66.69
  18. CQE-RC-04051 Crystal Quest Arsenic Multi Replacement Filter Cartridge

    CQE-RC-04051 Crystal Quest Arsenic Multi Replacement Filter Cartridge

    Fits most standard housings that accept 10-inch x 2.5-inch water filter cartridges Learn More
    $77.00 MSRP:  $94.29
  19. DD-7098 Daewoo Inline Filter

    DD-7098 Daewoo Inline Filter

    Fits Daewoo, Bosch, Siemens, and other refrigerator brands with an external inline water filter Learn More
    $31.89 MSRP:  $40.99
  20. TLC-150EB Desal Encapsulated Reverse Osmosis Membrane

    TLC-150EB Desal Encapsulated Reverse Osmosis Membrane

    Fits commercial reverse osmosis systems that accept 150 gallon per day encapsulated membranes Learn More
  21. W9121715 Doulton Supersterasyl Undersink Ceramic Candle Replacement Filter Cartridge

    W9121715 Doulton Supersterasyl Undersink Ceramic Candle Replacement Filter Cartridge

    Fits Doulton gravity fed systems Learn More
    $35.00 MSRP:  $41.41
  22. W9121750 Doulton Supersterasyl Undersink Ceramic Candle Replacement Filter Cartridge

    W9121750 Doulton Supersterasyl Undersink Ceramic Candle Replacement Filter Cartridge

    Fits Doulton HIP, HIS and HCPS housings (NOT gravity-fed) Learn More
    $23.00 MSRP:  $41.50
  23. W9361122 Doulton SS2 Countertop Filter System

    W9361122 Doulton SS2 Countertop Filter System

    Fits 2 long thread 7 inch by 2 inch filter candles Learn More
    $165.00 MSRP:  $232.27
  24. EV9275-70 Everpure QL2-OW200L Filter System

    EV9275-70 Everpure QL2-OW200L Filter System

    $105.99 MSRP:  $176.99
  25. 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
    $24.99 MSRP:  $30.69

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