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!

No Worries...
  • Your filters are guaranteed to be the right fit!
  • Our products are price match guaranteed!
  • Our customer service team is guaranteed to answer your call!
  • You’re guaranteed to find expert help!

Learn more about our No Worries Guarantee

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 252 total

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  • AF-20-2015-BB Tier1 Aries Comparable KDF and Carbon Water Filter
  • RFC-BBS-D Culligan Comparable Whole House Carbon Water Filter by Tier1
  • EPM-20BB Pentek Comparable Whole House Water Filter by Tier1
  • 150564 Pentek Whole House Water Filter System (Clear/ Blue)
  • 150072 Pentek 3/4-inch #10 Standard Blue/Clear Filter Housing
  • Pentek 158599 Clear 3G Slim Line Filter Housing

    Pentek 158599 Clear 3G Slim Line Filter Housing

    $22.99
    MSRP: $28.99
    Save 21%
  • Pentek 158637 Clear 3G Slim Line Filter Housing with Pressure Relief
  • RFC-93 Pentek Radial Flow Carbon Water Filter Cartridge

    RFC-93 Pentek Radial Flow Carbon Water Filter Cartridge

    $23.99
    MSRP: $27.99
    Save 14%
  • Pentek 150236 Big Blue Heavy Duty Filter Housing

    Pentek 150236 Big Blue Heavy Duty Filter Housing

    $58.99
    MSRP: $73.99
    Save 20%
  • Pentek 158214 Clear Traditional Slim Line Filter Housing

    Pentek 158214 Clear Traditional Slim Line Filter Housing

    $27.99
    MSRP: $37.99
    Save 26%
  • WB-HB-20-20W Harmsco Pleated Commercial Water Filter Cartridge
  •  WB-HB-20-50W Harmsco Pleated Commercial Water Filter Cartridge
  • 150240 Pentek 10-inch Big Blue Housing

    150240 Pentek 10-inch Big Blue Housing

    $29.99
    MSRP: $42.00
    Save 29%
  • EPM-BB Pentek Comparable Whole House Water Filter by Tier1 (6-Pack)
  • C1-20 Pentek Comparable Whole House Water Filter by Tier1 (2-Pack)
  • C1-20 Pentek Comparable Whole House Water Filter by Tier1 (4-Pack)
  • HFPP-34-PR-20 Pentek Big Blue Whole House 20 inch Filter (6-Pack)
  • HFPP-1-PR20 Pentek Big Blue Whole House 20 inch Filter (6-Pack)
  • Hydronix SDC-45-2001 Whole House Sediment Filter Cartridge
  • DGD-2501-20 Pentek Whole House Sediment Filter
  • DGD-5005-20 Pentek Whole House Water Filter

    DGD-5005-20 Pentek Whole House Filter Replacement Cartridge

    $23.99 MSRP: $25.76
    Save 7%
  • DGD-7525-20 Pentek Whole House Water Filter
  • Pentek ECP1-20BB Replacement Water Filter Cartridge

    ECP1-20BB Pentek Replacement Filter Cartridge

    $26.99 MSRP: $33.99
    Save 21%
  • Pentek ECP20-20BB Replacement Water Filter Cartridge

    Pentek ECP20-20BB Pleated Sediment Water Filter Cartridge

    $24.99 MSRP: $28.39
    Save 12%
  • ECP5-20BB Pentek Whole House Filter Cartridge
  • Pentek ECP50-20BB Replacement Water Filter Cartridge

    ECP50-20BB Pentek Replacement Filter Cartridge

    $24.99 MSRP: $31.99
    Save 22%
  • Pentek ECP50-BB Whole House Water Filter Replacement Cartridge
  • EP-20BB Pentek Replacement Water Filter
  • EP-BB Pentek Replacement Filter Cartridge

    EP-BB Pentek Replacement Filter Cartridge

    $27.99 MSRP: $32.32
    Save 13%
  • EPM-20BB Pentek Whole House Filter Cartridge

    EPM-20BB Pentek Whole House Filter Replacement Cartridge

    $47.99 MSRP: $59.99
    Save 20%
  • Pentek EPM-BB Replacement Water Filter Cartridge

    Pentek EPM-BB Water Filter Cartridge Replacement

    $26.99 MSRP: $34.49
    Save 22%
  • GAC20-BB Pentek Whole House Water Filter

    GAC20-BB Pentek Whole House Filter Replacement Cartridge

    $44.99 MSRP: $66.31
    Save 32%
  • NCP-20BB Pentek Whole House Filter Replacement

    NCP-20BB Pentek Whole House Filter Replacement Cartridge

    $34.99 MSRP: $48.81
    Save 28%
  • NCP-BB Pentek Whole House Water Filter

    NCP-BB Pentek Whole House Filter Replacement Cartridge

    $32.99 MSRP: $36.34
    Save 9%
  • Pentek WP25BB97P Whole House Water Filter Replacement Cartridge
  • Pentek WP5BB97P Replacement Water Filter Cartridge
  • Pentek WPX25BB97P Whole House Water Filter Replacement Cartridge
  • EP5-10BB Tier1 Carbon Block Water Filter

    EP5-10BB Tier1 Carbon Block Water Filter

    $22.99 MSRP: $26.34
    Save 13%
  • CW-MF Pentek Comparable Whole House Sediment Waters Filter by Tier1 (6-Pack)

Items 1 to 48 of 252 total

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