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!
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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.

17 Item(s)

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  • R30-20BB Pentek Comparable Whole House Sediment Water Filter by Tier1
  • C2-02 Advanced Water Products 20-inch x 4.5-inch Replacement Carbon Whole House Filter
  • C2-02 Viqua Carbon Whole House Filter

    C2-02 Viqua Carbon Whole House Filter

    $49.99
    MSRP: $89.00
    Save 44%
  • NCP-20BB Pentek Whole House Filter Replacement

    NCP-20BB Pentek Whole House Filter Replacement Cartridge

    $34.99 MSRP: $48.81
    Save 28%
  • S1-20BB Pentek Comparable Whole House Water Filter by Tier1

    S1-20BB Pentek Comparable Whole House Water Filter by Tier1

    $16.99 MSRP: $26.99
    Save 37%
  • HB-20-50W Harmsco Comparable Whole House Sediment Water Filter by Tier1
  • SPC-45-2030 Pentek Comparable Whole House Sediment Water Filter by Tier1
  • SPC-45-2050 Hydronix Comparable Whole House Sediment Water Filter by Tier1
  • CB-45-2010 Hydronix Replacement Filter Cartridge

    CB-45-2010 Hydronix Replacement Filter Cartridge

    $38.99
    MSRP: $52.99
    Save 26%
  • FPIR-BB-20 Watts Whole House Replacement Filter Cartridge
  • MATRIKX-1-HD20 KX Technologies MatrikX Whole House Filter Replacement Cartridge
  • MATRIKX-5-HD20 KX Technologies MatrikX Whole House Filter Replacement Cartridge
  • MATRIKX-CTO2-HD20 KX Technologies MatrikX Whole House Filter Replacement Cartridge
  • MATRIKX-Pb1-HD20 KX Technologies MatrikX Whole House Filter Replacement Cartridge
  • CRFC-20BB Pentek Chloramine Reduction Water Filter

    CRFC-20BB Pentek Chloramine Reduction Water Filter

    $117.69
    MSRP: $151.99
    Save 23%
  • FXB20RFL Filtrex Green Radial Flow Water Filter Cartridges
  • HB-20-20W Harmsco Comparable Whole House Sediment Water Filter by Tier1

17 Item(s)

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