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

When we protect your filter purchase with our No Worries Guarantee, we mean it!

No Worries...
  • Your filters are guaranteed to be the right fit!
  • Our products are price match guaranteed!
  • Our customer service team is guaranteed to answer your call!
  • You’re guaranteed to find expert help!

Learn more about our No Worries Guarantee

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.

Clear All
Compare

Items 1 to 25 of 75 total

Page:
  1. 1
  2. 2
  3. 3

Grid  List 

Set Descending Direction
  1. 8017757 Katadyn MyBottle Ultralight Series 24-Ounce Personal Water Purifier Bottle - Green Deer
  2. Crystal Quest 2-7/8 in x 9-3/4 in Nitrate Filter Cartridge
  3. AF-20-3690-BB Aries Replacement Whole House Fluoride Removal Filter

    AF-20-3690-BB Aries Whole House Fluoride Removal Filter

    Fits most housings that accept 20 inch x 4.5 filter cartridges Learn More
    $126.05 MSRP:  $171.99
  4. DUPONT-WFQTC90001

    DuPont WFQTC90001 Quick Twist 3rd Stage Replacement Filter

    Fits the Dupont-WFQT39000 Quick Twist Water Filter System Learn More
  5. DuPont WFFS150XCH Chrome Counter Top Faucet System
  6. Everpure EV9000-91 Antique Brass Drinking Faucet Head

    Everpure EV9000-91 Antique Brass Drinking Faucet Head

    Fits most standard kitchen sinks Learn More
    $127.49 MSRP:  $153.99

    Out of stock

  7. 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

    Out of stock

  8. 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
  9. 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
  10. 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

    Out of stock

  11. 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
  12. 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
  13. 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
  14. EV9275-70 Everpure QL2-OW200L Filter System

    EV9275-70 Everpure QL2-OW200L Filter System

    $105.99 MSRP:  $176.99
  15. TQ56-36FC PuROTwist PuROTwist Reverse Osmosis Membrane

    TQ56-36FC PuROTwist PuROTwist Reverse Osmosis Membrane

    Fits the third stage of the PuROTwist 3000 and 4000 reverse osmosis systems Learn More
    $80.39 MSRP:  $104.99
  16. WQCM11-50 Watts Kwik-Change Replacement Reverse Osmosis Membrane - Green

    WQCM11-50 Watts Kwik-Change Reverse Osmosis Membrane (Green)

    For use in Watts Kwik Change reverse osmosis systems Learn More
    $57.99 MSRP:  $68.99
  17. 8013618 Katadyn Camping Filter System

    8013618 Katadyn Camping Filter System

    $369.95 MSRP:  $427.74
  18. 8013629 Katadyn Camping Filter System
  19. 8017763 Katadyn Camping Filter System

    8017763 Katadyn Camping Filter System

    $219.95 MSRP:  $255.24

    Out of stock

  20. 8017764 Katadyn Microfilter System
  21. 8013628 Katadyn Guide Backcountry Series Microfilter Replacement Cartridge
  22. 8014644 Katadyn Hiker and Hiker Pro Backcountry Series Microfilter Replacement Cartridge
  23. 8013632 Katadyn Mini Ultralight Series Microfilter Replacement Cartridge
  24. TLC-350 Merlin Merlin Reverse Osmosis Membrane Element

    TLC-350 Merlin Merlin Reverse Osmosis Membrane Element

    Fits the GE Merlin Water Filtration System Learn More
    $92.99 MSRP:  $118.99
  25. S1227RS Microline TFC Reverse Osmosis Membrane

    S1227RS Microline TFC Reverse Osmosis Membrane

    Fits Microline Clack TFC 335 and TFC 435 reverse osmosis systems Learn More
    $57.99 MSRP:  $84.99

Items 1 to 25 of 75 total

Page:
  1. 1
  2. 2
  3. 3

Grid  List 

Set Descending Direction
Scroll To Top