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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!
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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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  • EPM-20 Pentek Comparable Whole House Water Filter by Tier1
  • TO1SS OmniFilter Whole House Water Filter
  • WFPFC3002 DuPont Universal Whole House Pleated Poly Filter Cartridge (2-Pack)
  • CP5-BBS-D Culligan Comparable Whole House Water Filter by Tier1
  • CBC-10 Pentek Replacement Water Filter

    CBC-10 Pentek Replacement Filter Cartridge

    As Low As $9.60 Per Filter

  • Pentek S1-BB Replacement Water Filter Cartridge

    S1-BB Pentek Replacement Filter Cartridge

    As Low As $5.40 Per Filter

  • S1-20BB Pentek Comparable Whole House Water Filter by Tier1
  • Pentek EP-20 Replacement Water Filter Cartridge

    EP-20 Pentek Replacement Filter Cartridge

    As Low As $15.50 Per Filter

  • EPM-BB Pentek Comparable Carbon Whole House Water Filter
  • R30-20BB Pentek Comparable Whole House Sediment Water Filter by Tier1
  • OmniPure OMB934-10M-P Carbon Block with Scale Inhibitor

    OmniPure OMB934-10M-P Carbon Block with Scale Inhibitor

    $15.99 Retail Price:  $18.34
  • WHKF-WHPL Whirlpool Whole House Replacement Sediment Filter Cartridge (2-Pack)
  • W50W American Plumber Whole House Sediment Filter Cartridge (2-Pack)
  • W5W American Plumber Whole House Sediment Filter Cartridge (2-Pack)
  • CP5-BBS-D Culligan Level 4 Whole House Filter Replacement Cartridge
  • CW-F-D Culligan Level 3 Whole House Filter Replacement Cartridge (2-Pack)
  • WHR-140 Culligan Level 2 Shower Filter Replacement Cartridge
  • FXSCH GE Shower Replacement Filter Cartridge

    FXSCH GE Shower Replacement Filter Cartridge

    $14.99 Retail Price:  $18.39
  • FLOPLUS-10 Pentek Replacement Filter Cartridge

    FLOPLUS-10 Pentek Replacement Filter Cartridge

    $14.99 Retail Price:  $21.26
  • MATRIKX-CR1-10 KX Technologies MatrikX Whole House Filter Replacement Cartridge
  • CB-25-2001 Hydronix Carbon Water Filter Replacement

    CB-25-2001 Hydronix Carbon Water Filter Replacement

    Regular Price: $17.99

    Special Price: $16.05

  • CFB-Plus20 Pentek Replacement Filter Cartridge

    CFB-Plus20 Pentek Replacement Water Filter Cartridge

    $16.99 Retail Price:  $21.26
  • W20CLHD American Plumber Whole House Heavy Duty Filter Cartridge
  • MAXPB-975 Watts C-MAX Replacement Filter Cartridge

    MAXPB-975 Watts C-MAX Water Filter Cartridge

    $17.99 Retail Price:  $20.69
  • RS15 OmniFilter Whole House Replacement Filter Cartridge
  • TO1DS OmniFilter Whole House Replacement Filter Cartridge (2-Pack)
  • R50-BBSa-D Culligan Level 1 Whole House Filter Replacement Cartridge
  • MAXVOC-975 Watts C-MAX Replacement Filter Cartridge

    MAXVOC-975 Watts C-MAX Water Filter Cartridge

    $18.99 Retail Price:  $22.99
  • MATRIKX-1-10 KX Technologies MatrikX Undersink Filter Replacement Cartridge
  • CCBC-10 Pentek Undersink Filter Replacement Cartridge

    CCBC-10 Pentek Undersink Filter Replacement Cartridge

    $18.99 Retail Price:  $19.31

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