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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. F-601R InSinkErator Instant Hot Water Dispenser Replacement Filter Cartridge (2-Pack)

    F-601R InSinkErator Instant Hot Water Dispenser Replacement Filter Cartridge (2-Pack)

    Fits the InSinkErator F-201 Water Filtration System, and all Series 1100 and 2200 Instant Hot Water Dispensers Learn More
    $130.99 Retail Price:  $134.42
  2. WFFM350XBN DuPont Deluxe Faucet Mount Drinking Water Filter - Brushed Nickel
  3. WFFMC100X DuPont Faucet Mount Replacement Cartridge - High Protection Filter
  4. WFFMC103X DuPont Faucet Mount Replacement Cartridges - High Protection Filter (3-pack)

    WFFMC103X DuPont Faucet Mount Replacement Cartridges - High Protection Filter (3-pack)

    Fits all DuPont faucet mounts Learn More
    $22.99 Retail Price:  $25.34
  5. WFFMC300X DuPont Faucet Mount Replacement Cartridge - Ultra Protection Filter
  6. WFFMC303X DuPont Faucet Mount Replacement Cartridges - Ultra Protection Filter (3-pack)
  7. 3M Aqua-Pure APDWS1000 Undersink Water Filter System

    APDWS1000 Undersink Water Filter System by 3M Aqua-Pure

    Fits most standard water lines Learn More
    $394.99 Retail Price:  $397.34
  8. EV9693-01 Everpure Chloramine Reduction Water Filter Replacement
  9. Brondell H2O+ Circle Reverse Osmosis Water Filtration System

    Brondell H2O+ Circle Reverse Osmosis Water Filtration System

    Undersink RO system. 10 times more efficient than conventional RO systems. Learn More
    $369.99
  10. W9123053 Doulton UltraCarb Undersink Ceramic Candle Replacement Filter Cartridge

    W9123053 Doulton UltraCarb Undersink Ceramic Candle Replacement Filter Cartridge

    Fits Doulton HIP, HIS and HCPS housings (NOT gravity-fed) Learn More
    $52.99 Retail Price:  $59.25
  11. AP-DW80/90 3M Aqua-Pure Water Filter Set

    AP-DW80/90 3M Aqua-Pure Pre and Post Filter Set

    Fits 3M Aqua-Pure water filter systems Learn More
    $116.99 Retail Price:  $198.46
  12. 3M Aqua-Pure AP-DW85 Water Filter Replacement Cartridge

    AP-DW85 3M Aqua-Pure Undersink Filter Replacement Cartridge

    Fits 3M Aqua-Pure undersink water filter systems Learn More
    $54.99 Retail Price:  $55.19
  13. EP15 3M Aqua-Pure Whole House Water Filter

    EP15 3M Aqua-Pure Whole House Water Filter Cartridge

    For use in 3M Aqua-Pure and Everpure whole house water filtration systems Learn More
    $69.99 Retail Price:  $82.79
  14. EP25 3M Aqua-Pure Whole House Water Filter

    EP25 3M Aqua-Pure Whole House Water Filter Cartridge

    Fits the 3M Aqua-Pure/Everpure H-104, H-200 and H-220 whole house water filtration systems Learn More
    $91.99 Retail Price:  $111.54
  15. WI-BG12000C Body Glove Replacement Filter Cartridge

    WI-BG12000C Body Glove Replacement Filter Cartridge

    Fits the Body Glove BG-12000 Water Filter System Learn More
    $290.21 Retail Price:  $386.95
  16. WI-BG3000C Body Glove Replacement Filter Cartridge

    WI-BG3000C Body Glove Replacement Filter Cartridge

    Fits the Body Glove BG-3000 Water Filter System Learn More
    $151.46 Retail Price:  $201.95
  17. WI-BG3000R Body Glove Replacement Filter Cartridge

    WI-BG3000R Body Glove Replacement Filter Cartridge

    Fits existing Everpure C-300 Filtration Systems Learn More
    $138.71 Retail Price:  $184.95
  18. 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
  19. 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
  20. 35501 Brita OB03 Pitcher Replacement Cartridge

    35501 Brita OB03 Pitcher Replacement Cartridge

    Fits all Brita pitchers, dispensers, and water coolers Learn More
    $9.99 Retail Price:  $13.79
  21. 35503 Brita OB03 Pitcher Replacement Cartridge (3-Pack)

    35503 Brita OB03 Pitcher Replacement Cartridge (3-Pack)

    Fits all Brita pitchers, dispensers, and water coolers Learn More
    $23.99 Retail Price:  $29.89
  22. 42432 Brita OB03 Pitcher Replacement Cartridge (4-Pack)

    42432 Brita OB03 Pitcher Replacement Cartridge (4-Pack)

    Fits all Brita pitchers, dispensers, and water coolers Learn More
    $29.99 Retail Price:  $37.94
  23. 35516 Brita OB03 Pitcher Replacement Cartridge (5-Pack)

    35516 Brita OB03 Pitcher Replacement Cartridge (5-Pack)

    Fits all Brita pitchers, dispensers, and water coolers Learn More
    $36.99 Retail Price:  $44.84
  24. 71048 Brita OB03 Pitcher Replacement Cartridge (6-Pack)

    71048 Brita OB03 Pitcher Replacement Cartridge (6-Pack)

    Fits all Brita pitchers, dispensers, and water coolers Learn More
    $43.99 Retail Price:  $52.89
  25. 42629 Brita Slim OB11 40-Ounce Water Pitcher

    42629 Brita Slim OB11 40-Ounce Water Pitcher

    $20.99 Retail Price:  $26.44

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