Discount Water Filters and Air Filters at Discount Filter Store.com

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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. W9223006 Doulton Imperial 10-inch Ultracarb Filter Cartridge
  2. DUPONT-WFQTC90001

    DuPont WFQTC90001 Quick Twist 3rd Stage Replacement Filter

    Fits the Dupont-WFQT39000 Quick Twist Water Filter System Learn More
  3. WSQC-2 WaterSentinel Reverse Osmosis Carbon GAC Filter Cartridge
  4. WFHD13001B DuPont Universal Heavy Duty Whole House Filtration System

    WFHD13001B DuPont Universal Heavy Duty Whole House Filtration System

    Fits standard 10 inch by 4.5 inch filter cartridges Learn More
    $62.99 MSRP:  $79.96
  5. FRSS-6 Sterilight 6 GPM 1-inch Flow Restrictor
  6. FRSS-6-34 Sterilight 6 GPM 3/4-inch Flow Restrictor
  7. Sterilight 8 GPM 1-inch Flow Restrictor
  8. FRSS-10 Sterilight 10 GPM 3/4-inch Flow Restrictor
  9. FRSS-15 Viqua 15 GPM 1-inch Flow Restrictor

    FRSS-15 Viqua 15 GPM 1-inch Flow Restrictor

    1 x 1 inch FNPT fitting Learn More
    $62.99 MSRP:  $110.00
  10. FRSS-20 Viqua 20 GPM 1-inch Flow Restrictor

    FRSS-20 Viqua 20 GPM 1-inch Flow Restrictor

    1 x 1 inch FNPT fitting Learn More
    $62.99 MSRP:  $110.00
  11. FRSS-6 Viqua 6 GPM 1-inch Flow Restrictor

    FRSS-6 Viqua 6 GPM 1-inch Flow Restrictor

    1 x 1 inch FNPT fitting Learn More
    $62.99 MSRP:  $110.00
  12. FRSS-8 Viqua 8 GPM 1-inch Flow Restrictor

    FRSS-8 Viqua 8 GPM 1-inch Flow Restrictor

    1 x 1 inch FNPT fitting Learn More
    $62.99 MSRP:  $110.00
  13. Pentair NEPP2-20DB Pureflex Pleated Polypropylene Cartridge

    Pentair NEPP2-20DB Pureflex Pleated Polypropylene Cartridge

    Fits standard filter housings that accept 20 x 2.5-inch filters Learn More
    $62.99 MSRP:  $77.99
  14. WRC25HD20 American Plumber Comparable Granular Activated Carbon Filter by Tier1

    WRC25HD20 American Plumber Comparable Granular Activated Carbon Filter by Tier1

    The WRC25HD20 American Plumber comparable replacement granular activated carbon filter by Tier1, is universal for a variety of water filter housings sized 20x4.5 inches. Learn More

    As Low As $0.00 Per Filter

  15. GAC20-BB Pentek Comparable Granular Activated Carbon Filter by Tier1

    GAC20-BB Pentek Comparable Granular Activated Carbon Filter by Tier1

    The GAC-20BB Pentek comparable replacement granular activated carbon filter by Tier1, is universal for a variety of water filter housings sized 20x4.5 inches. Learn More

    As Low As $0.00 Per Filter

  16. AP817-2 Aquapure Comparable Granular Activated Carbon Filter by Tier1

    AP817-2 Aquapure Comparable Granular Activated Carbon Filter by Tier1

    The AP817-2 Aquapure comparable replacement granular activated carbon filter by Tier1, is universal for a variety of water filter housings sized 20x4.5 inches. Learn More

    As Low As $0.00 Per Filter

  17. FXB20RFL Filtrex Comparable Granular Activated Carbon Filter by Tier1

    FXB20RFL Filtrex Comparable Granular Activated Carbon Filter by Tier1

    Fits most water filter housings that require a 20-inch x 4.5-inch filter cartridge Learn More

    As Low As $0.00 Per Filter

  18. FRSS-6-34 Viqua 6 GPM 3/4-inch Flow Restrictor

    FRSS-6-34 Viqua 6 GPM 3/4-inch Flow Restrictor

    3/4 x 3/4 inch FNPT fitting Learn More
    $63.79 MSRP:  $96.99
  19. 22155 Triton Water Replacement Membrane by Hydrologic

    22155 Triton Water Replacement Membrane by Hydrologic

    For use with Triton Reverse Osmosis Systems Learn More
    $64.39 MSRP:  $87.99
  20. FRSS-10 Viqua 10 GPM 3/4-inch Flow Restrictor
  21. FRSS-12 Viqua 12 GPM 1-inch Flow Restrictor
  22. 602976 Viqua Quartz Sleeve for 602856 UV Lamp

    602976 Viqua Quartz Sleeve for 602856 UV Lamp

    For use with Viqua ultraviolet disinfection systems using the 602856 UV lamp Learn More
    $65.00 MSRP:  $86.00
  23. UC36W1006 Honeywell UltraViolet Bulb Replacement

    UC36W1006 Honeywell UltraViolet Bulb Replacement

    Fits UC100A1054, UC100E1030, UV100A1018, UV100A1059 Learn More
    $65.99 MSRP:  $95.99
  24. F-201R InSinkErator Instant Hot Water Dispenser Replacement Filter Cartridge (2-Pack)

    InSinkErator F-201R Instant Hot Water Dispenser Replacement Filter Cartridge (2-Pack)

    Fits the InSinkErator F-201 Water Filtration System, and all Series 1100 and 2200 Instant Hot Water Dispensers Learn More
    $67.99 MSRP:  $70.00
  25. EPM-BB Pentek Comparable Whole House Water Filter by Tier1 (4-Pack)

    EPM-BB Pentek Comparable Whole House Water Filter by Tier1 (4-Pack)

    Fits most 10 x 4.5-inch filter housings Learn More

    $67.99

Items 1 to 25 of 119 total

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