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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. PX01-30 Purtrex Sediment Filter Cartridge

    PX01-30 Purtrex Sediment Filter Cartridge

    Fits filtration system housing that use 2.5-inch x 30-inch replacement filters Learn More
    $10.49 MSRP:  $14.36
  2. 67001 Aquamira Water Bottle Replacement Filter Cartridge

    67001 Aquamira Water Bottle Replacement Filter Cartridge

    Fits Aquamira Filter Bottle or Nalgene Sport Bottle Learn More
  3. AP111 3M Aqua-Pure Whole House Filter Replacement Cartridge

    AP111 3M Aqua-Pure Whole House Filter Replacement Cartridge

    Fits 3M Aqua-Pure whole house water filter systems Learn More
  4. KO100G2S Pentek Polypropylene Bag Filter

    KO100G2S Pentek Polypropylene Filter Bag

    Fits into Pentek Carbon Steel, Stainless Steel and Aluminum filtration system housings that accept #2 filter bags Learn More
    $10.99 MSRP:  $12.98
  5. 6570090 Tier1 Plastic Tank Ball Valve

    6570090 Tier1 Plastic Tank Ball Valve

    Fits 1/4-inch connections on water line and top of reverse osmosis tank Learn More
    $10.99
  6. AICRO-JGK Watts Inline Filter Cartridge

    AICRO-JGK Watts Inline Water Filter Cartridge

    For use with inline water filtration applications using 1/4-inch John Guest Quick Change fittings Learn More
    $10.99
  7. Whirlpool WHKF-GAC Undersink Replacement Water Filter Cartridge

    WHKF-GAC Whirlpool Undersink Replacement Filter Cartridge

    Fits the Whirlpool WHKF-DUF Under Sink Filter Housing Learn More
    $10.99 MSRP:  $20.34
  8. WHKF-WHPL Whirlpool Whole House Replacement Sediment Filter Cartridge (2-Pack)

    WHKF-WHPL Whirlpool Whole House Replacement Sediment Filter Cartridge (2-Pack)

    Fits standard 2-1/2 inch by 10 inch filter housings Learn More
    $10.99
  9. WHKF-WHSW Whirlpool Whole House Replacement Sediment Filter Cartridge (2-Pack)

    WHKF-WHSW Whirlpool Whole House Replacement Sediment Filter Cartridge (2-Pack)

    Fits standard 2-1/2 inch by 10 inch filter housings Learn More
    $10.99 MSRP:  $14.34
  10. R2-2PK Instapure Essentials Faucet Filter Replacement Cartridge (2-Pack)

    R2 Instapure Essentials Faucet Filter Replacement Cartridge (2-Pack)

    Fits the Instapure F2 Faucet Water Filter System Learn More
    $10.99 MSRP:  $13.79
  11. 32-250-125-050 KX Technologies Replacement Filter Cartridge

    32-250-125-050 KX Technologies Replacement Filter Cartridge

    Fits most standard housings that accept 5-inch filters Learn More
    $10.99
  12. S7025 Microline Replacement Filter Cartridge

    S7025 Microline Replacement Filter Cartridge

    Fits Microline Clack reverse osmosis systems Learn More
    $10.99 MSRP:  $14.94
  13. CL10ROT33-B Omnipure Inline Filter

    CL10ROT33-B Omnipure Inline Filter

    Fits standard 1/4-inch water lines Learn More
    $10.99 MSRP:  $13.79
  14. ELF-DK7 Omnipure Filter Head

    ELF-DK7 Omnipure Filter Head

    Fits standard 3/8-inch water lines Learn More
    $10.99 MSRP:  $16.09
  15. K2333-JJ Omnipure Inline Filter

    K2333-JJ Omnipure Inline Filter

    Fits standard 1/4-inch water lines Learn More
    $10.99 MSRP:  $13.79
  16. SPC-45-1010 Hydronix Pleated Sediment Water Filter

    SPC-45-1010 Hydronix Pleated Sediment Water Filter

    Sized 9 7/8 inches by 4 1/2 inches, 10 micron Learn More
    $10.99 MSRP:  $18.39
  17. SPC-25-2020 Hydronix Pleated Sediment Water Filter

    SPC-25-2020 Hydronix Pleated Sediment Water Filter

    20 inches by 2.5 inches, 20 micron. Fits into systems that use Liquatec SPF-25-2020, Pentek 255487-43 and Watts FM-20-20 water filters Learn More
    $10.99 MSRP:  $16.09
  18. SPC-25-2005 Hydronix Pleated Sediment Water Filter

    SPC-25-2005 Hydronix Pleated Sediment Water Filter

    20 inches by 2.5 inches, 5 micron. Fits into systems that use Liquatec SPF-25-2005, Pentek 255486-43 and Watts FM-5-20 water filters Learn More
    $10.99 MSRP:  $16.09
  19. CL10ROT33-A Omnipure GAC Inline Water Filter

    CL10ROT33-A Omnipure GAC Inline Water Filter

    Sized 2 inches W x 10 inches L; 1/8 inch FPT Learn More
    $10.99 MSRP:  $14.94
  20. SPC-25-2030 Hydronix Pleated Sediment Water Filter

    SPC-25-2030 Hydronix Pleated Sediment Water Filter

    30 micron filter, sized 20 x 2.5 inches Learn More
    $10.99 MSRP:  $12.64
  21. SWC-25-1010 Hydronix String Wound Sediment Water Filter

    SWC-25-1010 Hydronix String Wound Sediment Water Filter

    10 micron filter, sized 10 x 2.5 inches Learn More
    $10.99 MSRP:  $14.34
  22. Q5328 Omnipure Water Filter

    Q5328 Omnipure Water Filter

    Sized 2 1/2 x 6 inches with 20 x 50 mesh Learn More
    $10.99 MSRP:  $14.94
  23. 00401538 Culligan String Wound Sediment Filter

    00401538 Culligan String Wound Sediment Filter

    Built for use in Culligan AC50, AC30, AC15, H83 whole house water filtration systems and H53 reverse osmosis systems Learn More
  24. AP-GRMB-01PP-20UB Whole House Replacement Water Filter by 3M Aqua-Pure

    AP-GRMB-01PP-20UB Whole House Replacement Water Filter by 3M Aqua-Pure

    Fits most standard 20-inch x 2.5-inch housings Learn More
    $10.99 MSRP:  $13.34
  25. 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

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