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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26 Item(s)

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  • CW-F-D Culligan Comparable Whole House Water Filter 2-Pack by Tier1
  • EPM-10 Pentek Comparable Undersink Filter Replacement Cartridge by Tier1
  • RS14-SS OmniFilter Whole House Water Filter
  • PS5-10C Pentek Comparable Sediment Water Filter by Tier1
  • Pentek PD-10-20 Comparable Sediment Water Filter by Tier1
  • WHKF-WHSW Whirlpool Comparable Whole House Replacement Sediment Filter Cartridge by Tier1 (2-Pack)
  • RS2DS OmniFilter Comparable Whole House Replacement Water Filter Cartridge by Tier1 (2-Pack)
  • W5W American Plumber Comparable Whole House Sediment Filter Cartridge by Tier1 (2-Pack)
  • Pentek KE10G2S Polyester Filter Bag
  • Pentek KO10G2S Polyester Filter Bag

    Pentek KO10G2S Polyester Filter Bag

    $7.19
    MSRP: $10.99
    Save 35%
  • FXWF-1000 EcoWater Reverse Osmosis Filter Cartridge

    FXWF-1000 EcoWater Reverse Osmosis Filter Cartridge

    $9.49
    MSRP: $14.99
    Save 37%
  • EPM-10 Pentek Undersink Filter Replacement Cartridge

    EPM-10 Pentek Undersink Filter Replacement Cartridge

    $9.99
    MSRP: $13.99
    Save 29%
  • PX10-9-78 Purtrex Replacement Filter Cartridge

    PX10-9-78 Purtrex Replacement Water Filter

    $4.05
    MSRP: $8.04
    Save 50%
  • RS14-DS OmniFilter Whole House Filter Replacement Cartridge (2-Pack)
  • BP-420-10 Pentek Polypropylene Bag Filter

    BP-420-10 Pentek Polypropylene Bag Filter

    $4.99
    MSRP: $8.15
    Save 39%
  • SDC-25-1010 Hydronix Sediment Water Filter Cartridge

    SDC-25-1010 Hydronix Sediment Water Filter Cartridge

    $4.99
    MSRP: $6.89
    Save 28%
  • CB-25-1010 Hydronix Carbon Water Filter Replacement

    CB-25-1010 Hydronix Carbon Water Filter Replacement

    $8.99
    MSRP: $12.99
    Save 31%
  • SPC-25-1010 Hydronix Pleated Sediment Water Filter
  • P10-5 Tier1 Polypropylene Sediment Filter

    P10-5 Tier1 Polypropylene Sediment Filter

    $3.99
    MSRP: $5.74
    Save 30%
  • AP-GRMB-10PP-10UB Whole House Water Filter Replacement Cartridge
  • RS14SS Comparable Sediment Water Filter by Tier1

    RS14SS Comparable Sediment Water Filter by Tier1

    $3.99 MSRP: $6.99
    Save 43%
  • SDC-25-2010 Hydronix Whole House Replacement Sediment Filter Cartridge
  • PX10-20 Purtrex Replacement Filter Cartridge

    PX10-20 Purtrex Replacement Water Filter

    $6.99
    MSRP: $9.19
    Save 24%
  • GX10-20 Hytrex Replacement Filter Cartridge

    GX10-20 Hytrex Water Filter Cartridge

    $7.99
    MSRP: $11.49
    Save 30%
  • GX10-9-78 Hytrex Replacement Filter Cartridge

    GX10-9-78 Hytrex Replacement Water Filter Cartridge

    $6.99
    MSRP: $8.61
    Save 19%
  • Pentek PD-10-934 Whole House Water Filter Replacement Cartridge

    PD-10-934 Pentek Whole House Filter Replacement Cartridge

    $6.99 MSRP: $8.15
    Save 14%

26 Item(s)

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