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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.

Items 1 to 48 of 79 total

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  • TIER1-DGD1-20BB Whole House Sediment Water Filter
  • Hydronix SDC-45-2001 Whole House Sediment Filter Cartridge
  • DGD-5005-20 Pentek Whole House Water Filter
  • Pentek ECP50-BB Whole House Water Filter Replacement Cartridge
  • Pentek 158599 Clear 3G Slim Line Filter Housing

    Pentek 158599 Clear 3G Slim Line Filter Housing

    $22.99 Retail Price:  $28.99
  • Hydronix SDC-25-1005 6-Pack Whole House Replacement Sediment Filter Cartridge
  • DGD-7525-20 Pentek Whole House Water Filter
  • EP5-10BB Tier1 Carbon Block Water Filter

    EP5-10BB Tier1 Carbon Block Water Filter

    As Low As $15.60 Per Filter

  • ECP5-20BB Pentek Comparable Whole House Sediment Water Filter by Tier1
  • Pentek 158637 Clear 3G Slim Line Filter Housing with Pressure Relief
  • RFC-93 Pentek Radial Flow Carbon Water Filter Cartridge

    RFC-93 Pentek Radial Flow Carbon Water Filter Cartridge

    $23.99 Retail Price:  $27.99
  • DGD-2501-20 Pentek Whole House Sediment Filter
  • R30BB Pentek Comparable Whole House Water Filter by Tier1 (2-Pack)
  • Pentek ECP20-20BB Replacement Water Filter Cartridge

    ECP20-20BB Pentek Replacement Filter Cartridge

    As Low As $21.33 Per Filter

  • ECP5-20BB Pentek Whole House Filter Cartridge
  • Pentek ECP50-20BB Replacement Water Filter Cartridge

    ECP50-20BB Pentek Replacement Filter Cartridge

    As Low As $22.67 Per Filter

  • RFC-BBS-D Culligan Comparable Whole House Carbon Water Filter by Tier1
  • Pentek ECP1-20BB Replacement Water Filter Cartridge

    ECP1-20BB Pentek Replacement Filter Cartridge

    As Low As $23.00 Per Filter

  • Pentek EPM-BB Replacement Water Filter Cartridge

    EPM-BB Pentek Replacement Filter Cartridge

    As Low As $23.00 Per Filter

  • 150072 Pentek 3/4-inch #10 Standard Blue/Clear Filter Housing
  • Pentek 158214 Clear Traditional Slim Line Filter Housing

    Pentek 158214 Clear Traditional Slim Line Filter Housing

    $27.99 Retail Price:  $37.99
  •  WB-HB-20-50W Harmsco Pleated Commercial Water Filter Cartridge
  • EP-BB Pentek Replacement Filter Cartridge

    EP-BB Pentek Replacement Filter Cartridge

    As Low As $22.00 Per Filter

  • WB-HB-20-20W Harmsco Pleated Commercial Water Filter Cartridge
  • C1-20 Pentek Comparable Whole House Water Filter by Tier1 (2-Pack)
  • 150240 Pentek 10-inch Big Blue Housing

    150240 Pentek 10-inch Big Blue Housing

    $29.99 Retail Price:  $42.00
  • SPC-25-1020 Hydronix Pleated Sediment Water Filter (6-Pack)
  • Pentek SCBC-10 Silvered Carbon Block

    Pentek SCBC-10 Silvered Carbon Block

    $22.99 Retail Price:  $24.71
  • Pentek QC10-CB1R Carbon Block Quick Change Filter

    Pentek QC10-CB1R Carbon Block Quick Change Filter

    $22.99 Retail Price:  $31.04
  • Pentek CFB-Plus10BB Fiberdyne Carbon Filter

    Pentek CFB-Plus10BB Fiberdyne Carbon Filter

    $23.99 Retail Price:  $25.29
  • CBC-20 Tier1 Water Filter Cartridge

    CBC-20 Tier1 Water Filter Cartridge

    Regular Price: $24.99

    Special Price: $20.05

  • TSGAC-10 Pentek Undersink Filter Replacement Cartridge

    TSGAC-10 Pentek Undersink Filter Replacement Cartridge

    $20.99 Retail Price:  $24.60
  • SPC-45-2010 Hydronix Pleated Sediment Water Filter Cartridge
  • SPC-45-2030 Hydronix Pleated Sediment Water Filter

    SPC-45-2030 Hydronix Pleated Sediment Water Filter

    $20.99 Retail Price:  $31.04
  • W5CIP American Plumber Undersink Filter Replacement Cartridge (2-Pack)
  • SPC-45-2005 Hydronix Whole House Replacement Sediment Filter Cartridge
  • GAC-20 Pentek Replacement Filter Cartridge

    GAC-20 Pentek Replacement Filter Cartridge

    $21.99 Retail Price:  $23.56
  • S1-20BB Pentek Whole House Filter Replacement Cartridge

    S1-20BB Pentek Whole House Filter Replacement Cartridge

    $21.99 Retail Price:  $25.34
  • 154134 Pentek Water Filtration System Housing Cap – (Black, 0.75 Inch)
  • QC10-CBRR Pentek Undersink Quick-Change Replacement Filter Cartridge
  • QC10-GAC Pentek Undersink Quick-Change Filter System

    QC10-GAC Pentek Quick-Change Water Filter System

    $22.99 Retail Price:  $30.69
  • 153001 Pentek Filter Housing Sump - Blue

    153001 Pentek Filter Housing Sump - Blue

    $22.99 Retail Price:  $28.74
  • CFBC-20 Pentek Replacement Filter Cartridge

    CFBC-20 Pentek Replacement Water Filter Cartridge

    $23.49 Retail Price:  $29.31
  • W30PEHD American Plumber Whole House Heavy Duty Filter Cartridge
  • W50PEHD American Plumber Whole House Heavy Duty Filter Cartridge
  • P-250 Pentek Undersink Filter Set

    P-250 Pentek Undersink Filter Set

    $23.99 Retail Price:  $28.99
  • P-250A Pentek Undersink Filter Set

    P-250A Pentek Undersink Filter Set

    $23.99 Retail Price:  $29.13
  • PCC218 Pentek Replacement Filter Cartridge

    PCC218 Pentek Replacement Filter Cartridge

    $23.99 Retail Price:  $26.44

Items 1 to 48 of 79 total

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