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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Items 1 to 48 of 87 total

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  • W20CLA American Plumber Whole House Sediment Filter Cartridge (2-Pack)
  • W25P American Plumber Whole House Sediment Filter Cartridge (2-Pack)
  • W30PE American Plumber Whole House Sediment Filter Cartridge (2-Pack)
  • W50PE American Plumber Whole House Sediment Filter Cartridge (2-Pack)
  • W50W American Plumber Whole House Sediment Filter Cartridge (2-Pack)
  • W5CIP American Plumber Undersink Filter Replacement Cartridge (2-Pack)
  • W5P American Plumber Whole House Sediment Filter Cartridge (2-Pack)
  • W5W American Plumber Whole House Sediment Filter Cartridge (2-Pack)
  • WPD-110 American Plumber Whole House Sediment Filter Cartridge (2-Pack)
  • WRC25HD American Plumber Whole House Heavy Duty Filter Cartridge
  • WRC25HD20 American Plumber Whole House 20-inch Heavy Duty Filter Cartridge
  • TFM-24 Desal Reverse Osmosis Membrane

    TFM-24 Desal Reverse Osmosis Membrane

    $24.99
    MSRP: $47.14
    Save 47%
  • CB-25-1005 Hydronix Replacement Filter Cartridge

    CB-25-1005 Hydronix Replacement Filter Cartridge

    $10.49
    MSRP: $14.99
    Save 30%
  • CB-25-2010 Hydronix Replacement Filter Cartridge

    CB-25-2010 Hydronix Replacement Filter Cartridge

    $15.69
    MSRP: $23.99
    Save 35%
  • CB-45-2010 Hydronix Replacement Filter Cartridge

    CB-45-2010 Hydronix Replacement Filter Cartridge

    $38.49
    MSRP: $52.99
    Save 27%
  • SDC-25-1005 Hydronix Whole House Replacement Sediment Filter Cartridge
  • SDC-25-1020 Hydronix Whole House Replacement Sediment Filter Cartridge
  • SDC-25-2005 Hydronix Whole House Replacement Sediment Filter Cartridge
  • SDC-25-2020 Hydronix Whole House Replacement Sediment Filter Cartridge
  • SDC-25-3005 Hydronix Whole House Replacement Sediment Filter Cartridge
  • SDC-45-1001 Hydronix Whole House Replacement Sediment Filter Cartridge
  • SDC-45-1005 Hydronix Whole House Replacement Sediment Filter Cartridge
  • SDC-45-2050 Hydronix Whole House Replacement Sediment Filter Cartridge
  • SPC-45-2005 Hydronix Whole House Replacement Sediment Filter Cartridge
  • AICRO Watts Inline Polishing Filter

    AICRO Watts Inline Polishing Filter

    $7.99
    MSRP: $9.19
    Save 13%
  • AICRO-JGK Watts Inline Filter Cartridge
  • FPIR-BB-20 Watts Whole House Replacement Filter Cartridge
  • FPMB-BB20-10 Watts Flo-Pro Whole House Replacement Filter Cartridge
  • FPMB20-20 Watts Flo-Pro Whole House Replacement Filter Cartridge
  • FPMB20-978 Watts Flo-Pro Replacement Filter Cartridge

    FPMB20-978 Watts Flo-Pro Replacement Water Filter

    $3.99
    MSRP: $5.16
    Save 23%
  • FPMB5-20 Watts Flo-Pro Replacement Filter Cartridge

    FPMB5-20 Watts Flo-Pro Water Filter Cartridge

    $5.99
    MSRP: $6.89
    Save 13%
  • FPMB5-978 Watts Flo-Pro Replacement Filter Cartridge

    FPMB5-978 Watts Flo-Pro Water Filter Cartridge

    $4.99
    MSRP: $5.16
    Save 3%
  • MAXETW-975 Watts C-MAX Replacement Filter Cartridge

    MAXETW-975 Watts C-MAX Replacement Water Filter Cartridge

    $12.59
    MSRP: $18.99
    Save 34%
  • MAXETW-FF20 Watts C-MAX Whole House Replacement Filter Cartridge
  • MAXPB-975 Watts C-MAX Replacement Filter Cartridge

    MAXPB-975 Watts C-MAX Water Filter Cartridge

    $18.99
    MSRP: $27.99
    Save 32%
  • MAXVOC-975 Watts C-MAX Replacement Filter Cartridge

    MAXVOC-975 Watts C-MAX Water Filter Cartridge

    $18.99
    MSRP: $22.99
    Save 17%
  • W-1812-24 Watts Replacement Reverse Osmosis Membrane

    W-1812-24 Watts Reverse Osmosis Membrane Replacement

    $23.19
    MSRP: $52.99
    Save 56%
  • W-1812-36 Watts Replacement Reverse Osmosis Membrane

    W-1812-36 Watts Replacement Reverse Osmosis Membrane

    $28.99
    MSRP: $42.54
    Save 32%
  • WQCM11-50 Watts Kwik-Change Replacement Reverse Osmosis Membrane - Green
  • W20FFPH1CBPR Watts Flowmatic Big Clear Whole House Water Filter Housing
  • W10FFPH1CBPR Watts Full Flow Whole House Water Filter Housing
  • WQCCC11 Watts Kwik-Change Pre-Carbon Water Filter Cartridge

    WQCCC11 Watts Kwik-Change Pre-Carbon Water Filter Cartridge

    $17.99
    MSRP: $25.29
    Save 29%
  • WQCHFC11 Watts Kwik-Change Hollow Fiber (UF) Water Filter Cartridge
  • WQCFU-T-KIT Watts Triple Drinking Water Filtration System w/Kwik-Change Filter Cartridges
  • WQCSC11 Watts Kwik-Change Sediment Filter Cartridge

    WQCSC11 Watts Kwik-Change Sediment Filter Cartridge

    $11.99
    MSRP: $16.09
    Save 25%
  • AF-20-2015 Aries Comparable Sediment Water Filter by Tier1
  • 155014-43 Pentek Comparable Whole House Sediment Water Filter by Tier1
  • FXUSC GE Comparable Whole House Sediment Water Filter 2-Pack by Tier1

Items 1 to 48 of 87 total

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