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

When we protect your filter purchase with our No Worries Guarantee, we mean it!

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  • Your filters are guaranteed to be the right fit!
  • Our products are price match guaranteed!
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  • You’re guaranteed to find expert help!

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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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32 Item(s)

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  • Hydronix SDC-25-4005 Polypropylene Sediment Filter

    Hydronix SDC-25-4005 Polypropylene Sediment Filter

    $11.99
    MSRP: $13.56
    Save 12%
  • ECP5-BB Pentek Whole House Water Filter
  • Pentek ECP1-BB Replacement Water Filter Cartridge

    Pentek ECP1-BB Water Filter Cartridge Replacement

    $15.99 MSRP: $17.12
    Save 7%
  • Pentek ECP20-BB Replacement Water Filter Cartridge

    ECP20-BB Pentek Replacement Filter Cartridge

    $15.99 MSRP: $17.70
    Save 10%
  • SDC-45-2010 Hydronix Comparable Sediment Water Filter by Tier1
  • HB-20-20W Harmsco Comparable Whole House Sediment Water Filter by Tier1 (alternate)
  • 22010 Hydrologic Comparable Whole House Water Filter by Tier1
  • SPC-45-2020 Hydronix Comparable Whole House Water Filter by Tier1 (alternate)
  • SDC-45-2050 Hydronix Comparable Sediment Water Filter by Tier1
  • Hydronix SDC-45-2005 Whole House Sediment Filter Cartridge
  • ECP50-20BB Pentek Comparable Replacement Filter Cartridge by Tier1
  • Hydronix SDC-25-4025 Polypropylene Sediment Filter

    Hydronix SDC-25-4025 Polypropylene Sediment Filter

    $12.99
    MSRP: $14.34
    Save 9%
  • Hydronix SDC-25-4075 Polypropylene Sediment Filter

    Hydronix SDC-25-4075 Polypropylene Sediment Filter

    $12.99
    MSRP: $14.34
    Save 9%
  • BPHE-420-1 Pentek Polypropylene High Efficiency Bag Filter

    BPHE-420-1 Pentek Polypropylene High Efficiency Bag Filter

    $11.99
    MSRP: $16.55
    Save 28%
  • FS-1-40 Rusco Spin-Down Polyester Replacement Water Filter

    FS-1-40 Rusco Spin-Down Polyester Replacement Water Filter

    $11.99
    MSRP: $19.54
    Save 39%
  • FS-3/4-100 Rusco Replacement Spin-Down Polyester Water Filter
  • FS-3/4-60 Rusco Spin-Down Polyester Replacement Water Filter
  • BPHE-420-25 Pentek Polypropylene High Efficiency Bag Filter
  • FS-3/4-250 Rusco Spin-Down Polyester Replacement Water Filter
  • BPHE-420-5 Pentek Polypropylene High Efficiency Bag Filter
  • FS-1-500ST Rusco Replacement Polyester Sediment Trapper Filter
  • FS-1-30SS Rusco Spin-Down Steel Replacement Water Filter

    FS-1-30SS Rusco Spin-Down Steel Replacement Water Filter

    $16.99
    MSRP: $26.44
    Save 36%
  • W20CLHD American Plumber Whole House Heavy Duty Filter Cartridge
  • CP5-BBS-D Culligan Level 4 Whole House Filter Replacement Cartridge
  • FS-1-30STSS Rusco Sediment Trapper Steel Replacement Filter

    FS-1-30STSS Rusco Sediment Trapper Steel Replacement Filter

    $17.99
    MSRP: $33.34
    Save 46%
  • FS-1-60STSS Rusco Replacement Steel Sediment Trapper Filter

    FS-1-60STSS Rusco Replacement Steel Sediment Trapper Filter

    $17.99
    MSRP: $33.34
    Save 46%
  • FS-3/4-30SS Rusco Spin-Down Steel Replacement Water Filter

    FS-3/4-30SS Rusco Spin-Down Steel Replacement Water Filter

    $17.99
    MSRP: $27.59
    Save 35%
  • WPX100BB97P Pentek Replacement Filter Cartridge

    WPX100BB97P Pentek Replacement Filter Cartridge

    $18.99
    MSRP: $24.14
    Save 21%
  • FS-3/4-100STSS Rusco Replacement Steel Sediment Trapper Filter
  • FS-3/4-60SS Rusco Spin-Down Steel Replacement Water Filter

    FS-3/4-60SS Rusco Spin-Down Steel Replacement Water Filter

    $18.99
    MSRP: $31.04
    Save 39%
  • WP10BB97P Pentek Whole House Filter Replacement Cartridge
  • WPX50BB97P Pentek Replacement Filter Cartridge

    WPX50BB97P Pentek Replacement Filter Cartridge

    $19.99
    MSRP: $24.14
    Save 17%

32 Item(s)

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