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.

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  • AWP117 Viqua Carbon Block Filter for S2Q-DWS UV System

    AWP117 Viqua Carbon Block Filter for S2Q-DWS UV System

    $11.79
    MSRP: $16.99
    Save 31%
  • Pentek EP-10 Replacement Water Filter Cartridge

    Pentek EP-10 Filter Cartridge Replacement

    $11.99 MSRP: $15.34
    Save 22%
  • EP5-10 Tier1 Carbon Block Water Filter

    EP5-10 Tier1 Carbon Block Water Filter

    $8.49 MSRP: $11.49
    Save 26%
  • EP5-20 Tier1 Carbon Block Water Filter

    EP5-20 Tier1 Carbon Block Water Filter

    $15.99 MSRP: $20.69
    Save 23%
  • D-15 Culligan Whole Comparable House Carbon Water Filter by Tier1
  • DEV9108-17 Everpure CostGuard CG5-10S Undersink Filter Replacement Cartridge
  • CB-25-1005 Hydronix Replacement Filter Cartridge

    CB-25-1005 Hydronix Replacement Filter Cartridge

    $10.69
    MSRP: $14.99
    Save 29%
  • MAXETW-975 Watts C-MAX Replacement Filter Cartridge

    MAXETW-975 Watts C-MAX Replacement Water Filter Cartridge

    $12.79
    MSRP: $18.99
    Save 33%
  • PLEKX-10-10 KX Technologies PlekX Whole House Filter Replacement Cartridge
  • CEP-10E Pentek Replacement Filter Cartridge

    CEP-10E Pentek Replacement Filter Cartridge

    $12.99
    MSRP: $16.34
    Save 21%
  • CFB-Plus10 Pentek Replacement Filter Cartridge

    CFB-Plus10 Pentek Replacement Water Filter Cartridge

    $9.99
    MSRP: $14.13
    Save 29%
  • KDF55-10 Tier1 Water Filter

    KDF55-10 Tier1 Water Filter

    $23.99
    MSRP: $27.34
    Save 12%
  • HAC-10-LR-W Harmsco Chlorine and Lead Removal Whole House Filter

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