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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.

29 Item(s)

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  • P-12 Under Sink Water Replacement Filter Cartridge by Tier1
  • EPM-20BB Pentek Comparable Whole House Water Filter by Tier1
  • EPM-20BB Pentek Whole House Filter Cartridge
  • GAC20-BB Pentek Whole House Water Filter
  • EP-20BB Pentek Replacement Water Filter

    EP-20BB Pentek Replacement Filter Cartridge

    As Low As $40.50 Per Filter

  • Omnipure ELF-10M-P Carbon Block with Polyphosphate

    Omnipure ELF-10M-P Carbon Block with Polyphosphate

    $47.99 Retail Price:  $50.34
  • 47-55711G2 Water Factory Systems Whole House Replacement Filter Cartridge
  • MATRIKX-5-HD10 KX Technologies MatrikX Whole House Filter Replacement Cartridge
  • 9602 Moen Replacement Filter Cartridge for ChoiceFlo Faucet Systems
  • GXULQR GE Undersink Water Filter Replacement Cartridge
  • CBC-BB Pentek Whole House Filter Replacement Cartridge

    CBC-BB Pentek Whole House Filter Replacement Cartridge

    $42.99 Retail Price:  $44.26
  • CFB-PLUS20BB Pentek Replacement Water Filter Cartridge

    CFB-PLUS20BB Pentek Replacement Water Filter Cartridge

    $42.99 Retail Price:  $52.89
  • 4373529 Whirlpool Undersink Filter Replacement Cartridge

    4373529 Whirlpool Undersink Filter Replacement Cartridge

    $43.99 Retail Price:  $50.59
  • C-CS-FF 3M Aqua-Pure Undersink Water Filter

    C-CS-FF 3M Aqua-Pure Undersink Water Filter Cartridge

    $43.99 Retail Price:  $48.06
  • EV9618-36 Everpure 2CB-GW Replacement Water Filter Cartridge
  • MATRIKX-5-20 KX Technologies MatrikX Whole House Filter Replacement Cartridge
  • FLOPLUS-10BB Pentek Replacement Filter Cartridge

    FLOPLUS-10BB Pentek Replacement Filter Cartridge

    $44.99 Retail Price:  $48.52
  • R5 Instapure Complete Faucet Filter Replacement Cartridge (4-Pack)
  • 22006 Hydrologic BigBoy Replacement Carbon Filter - Green

    22006 Hydrologic BigBoy Carbon Filter (Green)

    Regular Price: $80.99

    Special Price: $45.05

  • 47-55708G2 Water Factory Systems Replacement Filter Cartridge
  • 9601 Moen ChoiceFlo Faucet Filter Replacement Cartridge
  • E5715 Omnipure Replacement Filter Cartridge

    E5715 Omnipure Replacement Filter Cartridge

    $45.99 Retail Price:  $52.89
  • EV9617-22 Everpure 2CB5-S Replacement Filter Cartridge

    EV9617-22 Everpure 2CB5-S Replacement Filter Cartridge

    $46.65 Retail Price:  $65.54
  • EFS8002 Everpure Replacement Filter Cartridge

    EFS8002 Everpure Replacement Filter Cartridge

    $48.99 Retail Price:  $58.64
  • Whirlpool WHAB-6010 Replacement Unit B Filter Cartridge

    WHAB-6010 Whirlpool Replacement Unit B Filter Cartridge

    $48.99 Retail Price:  $62.09
  • 4CB5 Everpure Replacement Filter Cartridge

    4CB5 Everpure Replacement Filter Cartridge

    $49.99 Retail Price:  $59.79
  • EFS8002-S Everpure Replacement Filter Cartridge

    EFS8002-S Everpure Replacement Filter Cartridge

    $49.99 Retail Price:  $59.79
  • CQE-RC-04036 Crystal Quest Carbon Block Water Filter Cartridge
  • R7 Instapure CompletePlus Faucet Filter Replacement Cartridge (4-Pack)

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