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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. 255541-43 Pentek Inline Water Filter Replacement
  2. WSQC-2 WaterSentinel Reverse Osmosis Carbon GAC Filter Cartridge
  3. CB6 Multipure Aquaversa Comparable Water Filter: HDG-CB6-14 HydroGuard

    CB6 Multipure Aquaversa Comparable Water Filter: HDG-CB6-14 HydroGuard

    Fits water filtration systems that use the CB6 Multpure Aquaversa replacement filter Learn More
    $31.99 Retail Price:  $52.99
  4. TS-500 Culligan Large Capacity Inline Filter Replacement Cartridge
  5. EFS8002 Everpure Replacement Filter Cartridge

    EFS8002 Everpure Replacement Filter Cartridge

    Fits Cuno 8000 systems Learn More
    $48.99 Retail Price:  $58.64
  6. EFS8002-S Everpure Replacement Filter Cartridge

    EFS8002-S Everpure Replacement Filter Cartridge

    Fits Cuno 8000 systems Learn More
    $49.99 Retail Price:  $59.79
  7. EV9601-00 Everpure 4C Replacement Filter Cartridge

    EV9601-00 Everpure 4C Replacement Filter Cartridge

    Fits Everpure filter heads including models QL1, QL2, QL3, and QL3B Learn More
    $41.99 Retail Price:  $45.99
  8. EV9608-10 Everpure 2JT Flushing and Sanitizing Cartridge

    EV9608-10 Everpure 2JT Flushing and Sanitizing Cartridge

    Fits Everpure filter heads including models QL1, QL2, QL3, and QL3B Learn More
    $40.99 Retail Price:  $49.44
  9. EV9612-71 Everpure 4K Plus Replacement Filter Cartridge

    EV9612-71 Everpure 4K Plus Replacement Filter Cartridge

    Fits Everpure filter heads including models QL1, QL2, QL3, and QL3B Learn More
    $52.99 Retail Price:  $59.79
  10. EV9617-21 Everpure 4CB5-S Replacement Filter Cartridge

    EV9617-21 Everpure 4CB5-S Replacement Filter Cartridge

    Fits Everpure filter heads including models QL1, QL2, QL3, and QL3B Learn More
    $68.99 Retail Price:  $80.71
  11. EV9617-22 Everpure 2CB5-S Replacement Filter Cartridge

    EV9617-22 Everpure 2CB5-S Replacement Filter Cartridge

    Fits Everpure filter heads including models QL1, QL2, QL3, and QL3B Learn More
    $54.99 Retail Price:  $65.54
  12. EV9617-36 Everpure 4CB5-K Replacement Filter Cartridge

    EV9617-36 Everpure 4CB5-K Replacement Filter Cartridge

    Fits Everpure filter heads including models QL1, QL2, QL3, and QL3B Learn More
    $69.00 Retail Price:  $81.65
  13. EV9619-06 Everpure OW200L Replacement Filter Cartridge

    EV9619-06 Everpure OW200L Replacement Filter Cartridge

    Fits Everpure filter heads including models QL1, QL2, QL3, and QL3B Learn More
    $81.00 Retail Price:  $95.45
  14. EV9634-01 Everpure OW2 Plus Replacement Filter Cartridge

    EV9634-01 Everpure OW2 Plus Replacement Filter Cartridge

    Fits Everpure filter heads including models QL1, QL2, QL3, and QL3B Learn More
    $66.30 Retail Price:  $78.55
  15. EV9635-01 Everpure OW4-Plus Replacement Filter Cartridge

    EV9635-01 Everpure OW4-Plus Replacement Filter Cartridge

    Fits Everpure filter heads including models QL1, QL2, QL3, and QL3B Learn More
    $64.99 Retail Price:  $66.69
  16. 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
  17. GS-215-CB5-B Pentek Inline Filter Replacement Cartridge

    GS-215-CB5-B Pentek Inline Water Filter Cartridge

    Fits onto 1/4-inch water lines Learn More
    $24.69 Retail Price:  $30.69
  18. 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
  19. 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
  20. 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
    $9.99 Retail Price:  $10.34
  21. GXILQR GE SmartWater Inline Filter Replacement Cartridge
  22. MH09-1812WH Liquatec Reverse Osmosis Membrane Housing - White

    MH09-1812WH Liquatec Reverse Osmosis Membrane Housing - White

    Fits reverse osmosis systems that use standard 11.75-inch to 12-inch membranes Learn More
    $18.99 Retail Price:  $24.14
  23. ELF-DK7 Omnipure Filter Head

    ELF-DK7 Omnipure Filter Head

    Fits standard 3/8-inch water lines Learn More
    $10.99 Retail Price:  $16.09
  24. K2533BB Omnipure Inline GAC Filter Cartridge

    K2533BB Omnipure Inline Water Filter Cartridge

    Fits onto standard 1/4-inch water lines Learn More
    $9.99 Retail Price:  $13.79
  25. K2567-BB Omnipure Inline Filter

    K2567-BB Omnipure Inline Filter

    Fits standard 1/4-inch water lines Learn More
    $14.99 Retail Price:  $19.54

Items 1 to 25 of 48 total

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