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

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  • Your filters are guaranteed to be the right fit!
  • Our products are price match guaranteed!
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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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24 Item(s)

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  • 22110 Hydrologic SmallBoy Replacement Carbon Filter - Green
  • TIER1-KDF85-10

    TIER1-KDF85-10

    $36.99
  • CW-F-D Culligan Comparable Whole House Water Filter 2-Pack by Tier1
  • EPM-10 Pentek Comparable Undersink Filter Replacement Cartridge by Tier1
  • Pentek WS-10 Water Softening Water Filter

    Pentek WS-10 Water Softening Filter

    $19.99 MSRP: $24.83
    Save 19%
  • RS14-SS OmniFilter Whole House Water Filter
  • W5W American Plumber Comparable Whole House Sediment Filter Cartridge by Tier1 (2-Pack)
  • 3WH-STDSW-F02 3M Filtrete Replacement Water Filter Cartridges (2-Pack)
  • PENTEK-EPM-10

    PENTEK-EPM-10

    $9.99
    MSRP: $13.99
    Save 29%
  • NCP-10 Pentek Undersink Filter Replacement Cartridge

    NCP-10 Pentek Undersink Filter Replacement Cartridge

    $10.29
    MSRP: $15.99
    Save 36%
  • PX10-9-78 Purtrex Replacement Filter Cartridge

    PX10-9-78 Purtrex Replacement Water Filter

    $4.05
    MSRP: $8.04
    Save 50%
  • RS14DS

    RS14DS

    $6.99
    MSRP: $8.15
    Save 14%
  • HYDRONIX-SDC-25-1010

    HYDRONIX-SDC-25-1010

    $4.99
  • HYDRONIX-CB-25-1010

    HYDRONIX-CB-25-1010

    $8.99
    MSRP: $12.99
    Save 31%
  • SPC-25-1010 Hydronix Pleated Sediment Water Filter
  • SWC-25-1010 Hydronix String Wound Sediment Water Filter

    SWC-25-1010 Hydronix String Wound Sediment Water Filter

    $12.99
    MSRP: $14.34
    Save 9%
  • AP-GRMB-10PP-10UB Whole House Water Filter Replacement Cartridge
  • RS14SS Comparable Sediment Water Filter by Tier1
  • GX10-9-78 Hytrex Replacement Filter Cartridge

    GX10-9-78 Hytrex Replacement Water Filter Cartridge

    $6.99
    MSRP: $8.61
    Save 19%
  • PENTEK-655130-43

    PENTEK-655130-43

    $13.99
    MSRP: $18.99
    Save 26%
  • 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%

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