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  • Your filters are guaranteed to be the right fit!
  • 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. WS01-WH Filtrete Water Station Filtered Water Bottle Filling Station
  2. F2-WHITE Instapure Essentials Faucet Filter System - White

    F2-WHITE Instapure Essentials Faucet Filter System - White

    Fits most standard kitchen water faucets Learn More
    $12.99 Retail Price:  $17.24
  3. F8-WHITE Instapure Ultra Faucet Filter System - White

    F8 Instapure Ultra Faucet Filter System - White

    Fits most standard kitchen water faucets Learn More
    $28.99 Retail Price:  $31.04
  4. WFFM350XBN DuPont Deluxe Faucet Mount Drinking Water Filter - Brushed Nickel

    WFFM350XBN DuPont Deluxe Faucet Mount Drinking Water Filter (Brushed Nickel)

    Fits most standard faucets Learn More
    $37.99 Retail Price:  $40.34
  5. WFFMC300X DuPont Faucet Mount Replacement Cartridge - Ultra Protection Filter
  6. WFFMC303X DuPont Faucet Mount Replacement Cartridges - Ultra Protection Filter (3-pack)

    WFFMC303X DuPont Faucet Mount Replacement Cartridges - Ultra Protection Filter (3-pack)

    Fits all DuPont faucet mounts Learn More
    $36.99 Retail Price:  $39.34
  7. D-25 Culligan Under Sink Water Filter

    D-25 Culligan Under Sink Water Filter

    Fits under sink filter systems that use 10 x 2.5-inch filters Learn More
    $11.99 Retail Price:  $16.99
  8. 67003 Aquamira Frontier Sport Water Bottle Replacement Filter Cartridge - front

    67003 Aquamira Frontier Sport Water Bottle Filter

    Regular Price: $12.95

    Special Price: $11.05

  9. 67011 / CR-100 Aquamira Water Bottle Replacement Filter Capsule - front

    67011 / CR-100 Aquamira Filtered Water Bottle Capsule

    Fits Aquamira filtered water bottles with patented Bite Me valve Learn More
    $12.95 Retail Price:  $17.19
  10. 67015 Aquamira Filtered Water Bottle - 1

    Aquamira Filtered Water Bottle (#67015)

    $27.95 Retail Price:  $34.44
  11. 67108 Aquamira Frontier Sport Water Bottle Replacement Filter Cartridge (Military) - front
  12. 35618 Brita Faucet Filter System - Chrome - 1

    Brita Chrome Faucet Filter System (#35618)

    Designed to fit easily onto all standard sized faucets Learn More

    Regular Price: $36.99

    Special Price: $30.05

  13. 42633 Brita On-Tap Faucet Filter System - Black / Chrome
  14. 42647 Brita AquaView AVFR-200 Faucet Filter Replacement Cartridge

    42647 Brita AquaView AVFR-200 Faucet Filter Replacement Cartridge

    Fits Brita AquaView faucet mounted water filter systems Learn More
  15. 42646 Brita AquaView AVFR-200 Faucet Filter Replacement Cartridge (2-Pack)
  16. 42622 Brita On-Tap FF-100 Faucet Filter System - Chrome
  17. 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
  18. 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
  19. 42645 Brita AquaView AVFF-100 Faucet Filter System - White
  20. 42201 Brita On-Tap FF-100 Faucet Filter System - White

    42201 Brita On-Tap FF-100 Faucet Filter System - White

    Fits any standard faucet Learn More
    $32.99 Retail Price:  $42.54
  21. 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
  22. 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
  23. FM-15A Culligan Level 3 On-Tap Faucet Filter System

    FM-15A Culligan Level 3 On-Tap Faucet Filter System

    Fits any standard faucet Learn More
    $22.99 Retail Price:  $28.51
  24. FM-15RA Culligan Level 3 Faucet Filter Replacement Cartridge

    FM-15RA Culligan Level 3 Faucet Filter Replacement Cartridge

    Fits Culligan FM-15 and FM-15A faucet mounted water filter systems Learn More
    $13.99 Retail Price:  $19.54
  25. FM-5 Culligan Level 3 On-Tap Faucet Filter System

Items 1 to 25 of 109 total

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