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

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Water Filtration Systems, Filters, & Parts

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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39 Item(s)

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  • AF-20-2015-BB Tier1 Aries Comparable KDF and Carbon Water Filter
  • Hydronix SDC-45-2001 Whole House Sediment Filter Cartridge
  • Hydronix SDC-45-2005 Whole House Sediment Filter Cartridge
  • ECP5-20BB Pentek Comparable Whole House Sediment Water Filter by Tier1 (25-Pack)
  • FMHC-90-5EZ Flow-Max Jumbo 90 Pleated Water Filter Cartridge - 5 Micron
  • ECP5-20BB Pentek Comparable Whole House Sediment Water Filter by Tier1
  • PB1-HD20 KX Matrikx Comparable Whole House Carbon Water Filter by Tier1
  • ECP1-20BB Pentek Comparable Whole House Sediment Water Filter by Tier1
  • ECP5-20BB Pentek Comparable Whole House Sediment Water Filter by Tier1
  • CQE-RC-04034 Crystal Quest Comparable Whole House Sediment Water Filter by Tier1
  • HB-20-5W Harmsco Comparable Whole House Sediment Water Filter by Tier1
  • SPC-45-2005 Hydronix Comparable Whole House Sediment Water Filter by Tier1
  • SPC-45-2010 Hydronix Comparable Whole House Sediment Water Filter by Tier1
  • W-1812-36 Watts Comparable Reverse Osmosis Membrane by Tier1
  • MAXETW-FF20 Watts Comparable C-MAX Whole House Water Filter Cartridge by Tier1
  • FMHC-90-1EZ Flow Max Replacement Filter Cartridge

    FMHC-90-1EZ Flow Max Replacement Filter Cartridge

    $103.99
    MSRP: $126.99
    Save 18%
  • W5CIP American Plumber Undersink Filter Replacement Cartridge (2-Pack)
  • TFM-24 Desal Reverse Osmosis Membrane

    TFM-24 Desal Reverse Osmosis Membrane

    $24.99
    MSRP: $47.14
    Save 47%
  • 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
  • WQCHFC11 Watts Kwik-Change Hollow Fiber (UF) Water Filter Cartridge
  • WQCFU-T-KIT Watts Triple Drinking Water Filtration System w/Kwik-Change Filter Cartridges
  • NM12-CK10F Tier1 Backwashing Filter
  • TIER1_P5_30_20_PACK
  • ECP5-20 Pentek Comparable Whole House Sediment Water Filter by Tier1 (50-Pack)
  • WRC25HD American Plumber Whole House Heavy Duty Filter Cartridge
  • WRC25HD20 American Plumber Whole House 20-inch Heavy Duty Filter Cartridge
  • CB-45-2010 Hydronix Replacement Filter Cartridge

    CB-45-2010 Hydronix Replacement Filter Cartridge

    $48.99
    MSRP: $58.99
    Save 17%
  • SDC-45-2050 Hydronix Whole House Replacement Sediment Filter Cartridge
  • SPC-45-2005 Hydronix Whole House Replacement Sediment Filter Cartridge
  • FPIR-BB-20 Watts Whole House Replacement Filter Cartridge
  • MAXETW-FF20 Watts C-MAX Whole House Replacement Filter Cartridge
  • W20FFPH1CBPR Watts Flowmatic Big Clear Whole House Water Filter Housing
  • W10FFPH1CBPR Watts Full Flow Whole House Water Filter Housing
  • FH4200CW12 Watts Flowmatic Clear Water Filter Housing

    FH4200CW12 Watts Flowmatic Clear Water Filter Housing

    $28.99
    MSRP: $31.04
    Save 7%

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