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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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  • CW-MF Pentek Whole House Filter Replacement Cartridge (6-Pack)
  • 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

  • 10-212 Pentek UV Lamp

    10-212 Pentek UV Lamp

    $47.99 Retail Price:  $67.38
  • VIH-34-PR10 Pentek Whole House Valve-in-Head 10 inch Filter Housing
  • HFPP-112-PR10 Pentek Big Blue Whole House 10 inch Filter Housing
  • HFPP-34-PR-10 Pentek Big Blue Whole House 10 inch Filter Housing
  • PCC-1 Pentek Undersink Filter Replacement Cartridge

    PCC-1 Pentek Undersink Filter Replacement Cartridge

    $41.99 Retail Price:  $53.23
  • PCF1-20MB Pentek Whole House 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
  • HFPP-1-PR20 Pentek Big Blue Whole House 20 inch Filter Housing
  • DBC-10EX2 Pentek Replacement Filter Cartridge

    DBC-10EX2 Pentek Water Filter Cartridge Replacement

    $43.99 Retail Price:  $57.95
  • FLOPLUS-10BB Pentek Replacement Filter Cartridge

    FLOPLUS-10BB Pentek Replacement Filter Cartridge

    $44.99 Retail Price:  $48.52
  • UDS-10EX1 Pentek Whole House Filter Replacement Cartridge
  • WS-20BB Pentek Whole House Filter Replacement Cartridge

    WS-20BB Pentek Whole House Filter Replacement Cartridge

    $45.99 Retail Price:  $52.08
  • 150166 Pentek Whole House Filter System

    150166 Pentek Whole House Filter System

    $46.99 Retail Price:  $56.34
  • LF-EC25-BN Tier1 Contemporary Ceramic Faucet - Brushed Nickel
  • LF-EC25-SN Tier1 Contemporary Ceramic Faucet - Satin Nickel
  • RWC-5 American Plumber Undersink Filter Replacement Cartridge
  • ROM-16C Pentek Reverse Osmosis Replacement Membrane

    ROM-16C Pentek Reverse Osmosis Replacement Membrane

    $49.99 Retail Price:  $56.80

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