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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.

Items 1 to 25 of 29 total

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  1. WFFMC100X DuPont Faucet Mount Replacement Cartridge - High Protection Filter

    WFFMC100X DuPont Faucet Mount Replacement Cartridge - High Protection Filter

    Fits all DuPont faucet mount systems Learn More
    $7.99 Retail Price:  $9.34
  2. CL6ROT33-A Omnipure GAC Inline Water Filter

    CL6ROT33-A Omnipure GAC Inline Water Filter

    Ideal for use in water coolers, drinking fountains, under sink systems, ice machines, and reverse osmosis systems Learn More
  3. ICF-6 Hydronix Inline Coconut Carbon Filter

    ICF-6 Hydronix Inline Coconut Carbon Filter

    $5.99 Retail Price:  $9.19
  4. 57-2017 Nubo Bottle Replacement Water Bottle Filter

    57-2017 Nubo Replacement Water Bottle Filter

    Fits Nubo filtered water bottles Learn More
    $5.99 Retail Price:  $9.19
  5. PR-1 Culligan Pitcher Replacement Cartridge

    PR-1 Culligan Water Filter Pitcher Replacement Cartridge

    Fits Culligan PIT-1, OP-1, GP-1, WP-1, WFR1 and WFJ2 water filter pitchers Learn More
    $6.99 Retail Price:  $12.52
  6. FRC1D OmniFilter Faucet Filter Replacement Cartridge

    FRC1D OmniFilter Faucet Filter Replacement Cartridge

    Fits the Omni F1 faucet mounted water filter system Learn More
    $6.99 Retail Price:  $12.41
  7. ICF-10Q Hydronix Inline Coconut Carbon Filter

    ICF-10Q Hydronix Inline Coconut Carbon Filter

    $6.99 Retail Price:  $10.34
  8. ICF-6Q Hydronix Inline Coconut Carbon Filter

    ICF-6Q Hydronix Inline Coconut Carbon Filter

    $6.99 Retail Price:  $10.34
  9. ICF-10 Hydronix Inline Coconut Carbon Filter

    ICF-10 Hydronix Inline Coconut Carbon Filter

    $7.99 Retail Price:  $9.19
  10. AICRO Watts Inline Polishing Filter

    AICRO Watts Inline Polishing Filter

    Fits the Watts Flowmatic FMR04-MAN reverse osmosis water filtration system Learn More
    $7.99 Retail Price:  $9.19
  11. CL6ROT33-C Omnipure Inline Filter

    CL6ROT33-C Omnipure Inline Filter

    Fits standard 3/8-inch water lines Learn More
    $7.99 Retail Price:  $11.49
  12. FXWF-1000 EcoWater Reverse Osmosis Filter Cartridge
  13. ICF-10Q38 Hydronix Inline Coconut Carbon Filter
  14. IC-101L Pentek Inline Filter

    IC-101L Pentek Inline Filter

    Fits standard 1/4-inch water lines Learn More
    $8.99 Retail Price:  $12.98
  15. 57-1423 Nubo Bottle Filtered Water Bottle
  16. CL10ROT40-C Omnipure Inline Coconut Carbon Filter

    CL10ROT40-C Omnipure Inline Coconut Carbon Filter

    Fits standard 3/8-inch water lines Learn More
    $8.99 Retail Price:  $12.64
  17. CL10ROT28-A Omnipure Inline Water Filter

    CL10ROT28-A Omnipure Inline Water Filter

    Sized 2 x 10, with 1/8 inch FPT connections Learn More
    $8.99 Retail Price:  $12.64
  18. K2386-JJ Omnipure Inline Phosphate Water Filter

    K2386-JJ Omnipure Inline Phosphate Water Filter

    2 inch x 6 inch, 1/4 inch FQC, for use on cold water lines only Learn More

    Regular Price: $10.99

    Special Price: $9.05

  19. 8015036 Katadyn Vario Backcountry Series Carbon Refill
  20. HBSF-1FLT Hydros Fast-Flow Side-Fill Water Purifier Bottle Replacement Filter

    HBSF-1FLT Hydros Fast-Flow Side-Fill Water Purifier Bottle Replacement Filter

    Fits the Hydros "Side Fill" filtering water bottle Learn More
  21. GS-10-B Pentek Inline Filter Replacement Cartridge

    GS-10-B Pentek Replacement Inline Water Filter Cartridge

    For 1/4-inch water lines Learn More
    $9.99 Retail Price:  $12.75
  22. GS-6RO-B Pentek Inline Filter Replacement Cartridge

    GS-6RO-B Pentek Inline Water Filter Cartridge

    Fits 1/4-inch water lines with 1/4-inch MPT Learn More
    $9.99 Retail Price:  $12.18
  23. R2-1PK Instapure Essentials Faucet Filter Replacement Cartridge

    R2-1PK Instapure Essentials Faucet Filter Replacement Cartridge

    Fits the Instapure F2 Faucet Water Filter System Learn More
    $9.99 Retail Price:  $11.95
  24. CL10ROT33-C Omnipure Inline Filter

    CL10ROT33-C Omnipure Inline Filter

    Fits standard 3/8-inch water lines Learn More
    $9.99 Retail Price:  $13.79
  25. CL10ROT40-B Omnipure Inline Coconut Carbon Filter

    CL10ROT40-B Omnipure Inline Coconut Carbon Filter

    Fits standard 1/4-inch water lines Learn More
    $9.99 Retail Price:  $13.79

Items 1 to 25 of 29 total

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