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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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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17 Item(s)

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  • HAC-10-W Harmsco Activated Carbon Water Filter Cartridge

    HAC-10-W Harmsco Activated Carbon Water Filter Cartridge

    $13.99
    MSRP: $19.99
    Save 30%
  • WB-20-W Harmsco Pleated Commercial Water Filter Cartridge

    WB-20-W Harmsco Pleated Commercial Water Filter Cartridge

    $10.99
    MSRP: $14.99
    Save 27%
  • Pentek CHLORPLUS-10 Whole House Water Filter Replacement Cartridge
  • ECP5-BB Pentek Whole House Water Filter
  • EPM-20 Pentek Whole House Water Filter

    Pentek EPM-20 Whole House Water Filter Replacement Cartridge

    $15.99 MSRP: $19.34
    Save 17%
  • Pentek NCP-20 Whole House Water Filter Replacement Cartridge

    Pentek NCP-20 Whole House Water Filter Replacement Cartridge

    $14.99 MSRP: $20.57
    Save 27%
  • Pentek P1-20 Whole House Water Filter Replacement Cartridge
  • Pentek S1-BB Replacement Water Filter Cartridge

    Pentek S1-BB Water Filter Cartridge Replacement

    $14.99 MSRP: $17.99
    Save 17%
  • Harmsco PO-25-G1PS-EA Polypropylene Filter Bag

    Harmsco PO-25-G1PS-EA Polypropylene Filter Bag

    $18.99
    MSRP: $21.34
    Save 11%
  • PP-S-1 Harmsco Replacement Filter Cartridge

    PP-S-1 Harmsco Replacement Filter Cartridge

    $19.49
    MSRP: $24.71
    Save 21%
  • GAC-10 Pentek Undersink Filter Replacement Cartridge

    GAC-10 Pentek Undersink Filter Replacement Cartridge

    $13.29
    MSRP: $19.99
    Save 34%
  • NCP-10 Pentek Undersink Filter Replacement Cartridge

    NCP-10 Pentek Undersink Filter Replacement Cartridge

    $10.29
    MSRP: $15.99
    Save 36%
  • C1 Pentek Undersink Filter Replacement Cartridge

    Pentek C1 Undersink Water Filter Replacement Cartridge

    $12.99
    MSRP: $15.34
    Save 15%
  • CBR2-10 Pentek Undersink Filter Replacement Cartridge
  • CC-10 Pentek Undersink Filter Replacement Cartridge

    CC-10 Pentek Undersink Filter Replacement Cartridge

    $15.39
    MSRP: $21.99
    Save 30%
  • CCBC-10 Pentek Undersink Filter Replacement Cartridge

    CCBC-10 Pentek Undersink Filter Replacement Cartridge

    $19.59
    MSRP: $27.99
    Save 30%
  • HB-20-20W Harmsco Comparable Whole House Sediment Water Filter by Tier1

17 Item(s)

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