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  • Your filters are guaranteed to be the right fit!
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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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  • W5CIP American Plumber Undersink Filter Replacement Cartridge (2-Pack)
  • 3M Aqua-Pure AP117 Whole House Water Filter Cartridge
  • 3M Aqua-Pure APS117 Whole House Water Filter Replacement Cartridge
  • EV9797-21 Everpure Commercial Filter System

    EV9797-21 Everpure Commercial Filter System

    $599.99 Retail Price:  $692.29
  • FXWTC GE SmartWater Whole House Filter Replacement Cartridge
  • MAXETW-FF20 Watts C-MAX Whole House Replacement Filter Cartridge
  • MATRIKX-CTO2-HD10 KX Technologies MatrikX Whole House Filter Replacement Cartridge
  • 3038333 Merlin Reverse Osmosis Carbon Pre Filter

    3038333 Merlin Reverse Osmosis Carbon Pre Filter

    $26.99 Retail Price:  $28.74
  • CFB-PLUS20BB Pentek Replacement Water Filter Cartridge

    CFB-PLUS20BB Pentek Replacement Water Filter Cartridge

    $42.99 Retail Price:  $52.89
  • HDG-P117 Hydronix Replacement Water Filter
  • Pentek CFB-Plus10BB Fiberdyne Carbon Filter

    Pentek CFB-Plus10BB Fiberdyne Carbon Filter

    $23.99 Retail Price:  $25.29
  • 155014-43 Pentek Comparable Whole House Sediment Water Filter by Tier1
  • RS2SS OmniFilter Comparable Whole House Water Filter by Tier1
  • WFHDC8001 DuPont Universal Heavy Duty Carbon Wrap 2-Phase Cartridge
  • WFPF38001C DuPont Universal Valve-In-Head Whole House Water Filtration System
  • P5-10 Tier1 Sediment Water Filter (4-pack)
  • EP-20BB Pentek Replacement Water Filter

    EP-20BB Pentek Replacement Filter Cartridge

    As Low As $40.50 Per Filter

  • P5-10 Tier1 Sediment Water Filter

    P5-10 Tier1 Sediment Water Filter

    As Low As $3.00 Per Filter

  • The Pentek C1 comparable Whole House Carbon Water Filter by Tier1
  • TO1SS OmniFilter Whole House Water Filter
  • TO6-SS2-S06 OmniFilter Whole House Water Filter
  • Pentek C1-20 Carbon Water Filter Replacement Cartridge

    C1-20 Pentek Replacement Filter Cartridge

    As Low As $10.80 Per Filter

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