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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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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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  • HF40-S Cuno Whole House Filter Replacement Cartridge

    HF40-S Cuno Whole House Filter Replacement Cartridge

    $105.99 Retail Price:  $123.04
  • HF45-S Cuno Whole House Filter Replacement Cartridge

    HF45-S Cuno Whole House Filter Replacement Cartridge

    $103.99 Retail Price:  $120.39
  • HF60-S Cuno Whole House Filter Replacement Cartridge

    HF60-S Cuno Whole House Filter Replacement Cartridge

    $138.99 Retail Price:  $160.99
  • 22006 Hydrologic BigBoy Replacement Carbon Filter - Green

    22006 Hydrologic BigBoy Carbon Filter (Green)

    Regular Price: $80.99

    Special Price: $45.05

  • CB-45-2010 Hydronix Replacement Filter Cartridge
  • CFBC-20 Pentek Replacement Filter Cartridge

    CFBC-20 Pentek Replacement Water Filter Cartridge

    $23.49 Retail Price:  $29.31
  • SF100 OmniFilter Shower-Soft Inline Shower Filter
  • BB-WH Sprite Filtered Bath Ball - White

    BB-WH Sprite Bath Ball Filter (White)

    $31.99 Retail Price:  $34.34
  • FPIR-BB-20 Watts Whole House Replacement Filter Cartridge

    FPIR-BB-20 Watts Whole House Iron Water Filter Cartridge

    $109.99 Retail Price:  $114.99
  • 1040 Katadyn Camping Water Filter Kit

    1040 Katadyn Camping Water Filter Kit

    $199.95 Retail Price:  $232.24
  • 2110070 Katadyn Camping Filter System

    2110070 Katadyn Camping Filter System

    $317.95 Retail Price:  $367.94
  • 8016389 Katadyn Camping Filter System

    8016389 Katadyn Camping Filter System

    $1,499.95 Retail Price:  $1727.24
  • SF200R-S6-05 Omnifilter Replacement Shower Filter

    SF200R-S6-05 Omnifilter Replacement Shower Filter

    $14.99 Retail Price:  $19.54

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