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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. ROR2000-S-05 OmniFilter Reverse Osmosis Pre Filter Replacement

    ROR2000-S-05 OmniFilter Reverse Osmosis Pre Filter Replacement

    Fits the OmniFilter RO2000 Series B Reverse Osmosis System Learn More
    $24.99
  2. CBC-10 Pentek Replacement Filter Cartridge

    CBC-10 Pentek Replacement Filter Cartridge

    Fits most housings that accept 10-inch x 2.5-inch water filter cartridges Learn More
    $15.99 Retail Price:  $18.34
  3. Pentek SCBC-10 Silvered Carbon Block

    Pentek SCBC-10 Silvered Carbon Block

    Standard 10 inch by 2.5 inch size fits many under sink filter housings Learn More
    $22.99 Retail Price:  $24.71
  4. Pentek QC10-CB1R Carbon Block Quick Change Filter

    Pentek QC10-CB1R Carbon Block Quick Change Filter

    Proprietary design fits Pentek QC systems exclusively Learn More
    $22.99 Retail Price:  $31.04
  5. EV9324-02 Everpure Ice Machine Filter System

    EV9324-02 Everpure Ice Machine Filter System

    Fits standard 3/8-inch water lines Learn More
    $376.99 Retail Price:  $450.79
  6. i40002 Everpure Replacement Filter Cartridge

    i40002 Everpure Replacement Filter Cartridge

    Fits Everpure Insurice filter systems Learn More
    $88.99 Retail Price:  $100.04
  7. XC2 Everpure Replacement Filter Cartridge

    XC2 Everpure Replacement Filter Cartridge

    Fits Everpure EV9337 and EV9347 systems Learn More
    $72.99 Retail Price:  $86.24
  8. H9655-11 Hoshizaki Replacement Filter Cartridge

    H9655-11 Hoshizaki Replacement Water Filter Cartridge

    Fits single, double and triple Hoshizaki water filtration systems Learn More
    $72.99 Retail Price:  $89.69
  9. FLOPLUS-10 Pentek Replacement Filter Cartridge

    FLOPLUS-10 Pentek Replacement Filter Cartridge

    Fits most housings that accept standard 10-inch x 2.5-inch water filter cartridges Learn More
    $15.99 Retail Price:  $21.26
  10. FLOPLUS-20 Pentek Replacement Filter Cartridge

    FLOPLUS-20 Pentek Replacement Filter Cartridge

    Fits most housings that accept standard 20-inch x 2.5-inch water filter cartridges Learn More
    $29.99 Retail Price:  $31.84
  11. QC10-CB1 Pentek Undersink Quick-Change Filter System
  12. MAXPB-975 Watts C-MAX Replacement Filter Cartridge

    MAXPB-975 Watts C-MAX Water Filter Cartridge

    Fits water filtration system housings that use a 9 3/4-inch x 2 7/8-inch filter Learn More
    $17.99 Retail Price:  $20.69
  13. MAXVOC-975 Watts C-MAX Replacement Filter Cartridge

    MAXVOC-975 Watts C-MAX Water Filter Cartridge

    Fits standard 10-inch x 2.5-inch water filtration system housings Learn More
    $18.99 Retail Price:  $22.99
  14. IOMQ Ice-O-Matic Replacement Ice Maker Pre-Filter Cartridge

    IOMQ Ice-O-Matic Ice Maker Pre-Filter Cartridge Replacement

    For use in the Ice-O-Matic IFQ1 and IFQ2 ice maker filtration systems Learn More
    $109.99 Retail Price:  $110.39
  15. MATRIKX-CR1-10 KX Technologies MatrikX Whole House Filter Replacement Cartridge

    MATRIKX-CR1-10 KX Technologies MatrikX Whole House Filter Replacement Cartridge

    Fits any standard housing that uses 9 3/4-inch x 2 1/2-inch replacement filter cartridges Learn More
    $15.99 Retail Price:  $20.34
  16. MATRIKX-CR1-20 KX Technologies MatrikX Whole House Filter Replacement Cartridge

    MATRIKX-CR1-20 KX Technologies MatrikX Whole House Filter Replacement Cartridge

    Fits any standard housing that uses 20-inch x 2 1/2-inch replacement filter cartridges Learn More
    $34.99 Retail Price:  $36.34
  17. MATRIKX-Pb1-HD20 KX Technologies MatrikX Whole House Filter Replacement Cartridge

    MATRIKX-Pb1-HD20 KX Technologies MatrikX Whole House Filter Replacement Cartridge

    Fits any standard housing that uses 20-inch x 4 1/2-inch replacement filter cartridges Learn More
    $127.99

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