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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!
  • Our products are price match guaranteed!
  • Our customer service team is guaranteed to answer your call!
  • You’re guaranteed to find expert help!

Learn more about our No Worries Guarantee

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 95 total

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  • Pentek WP5BB97P Replacement Water Filter Cartridge

    WP5BB97P Pentek Replacement Filter Cartridge

    As Low As $17.50 Per Filter

  • Pentek WS-10 Water Softening Water Filter

    WS-10 Pentek Water Softening Filter

    As Low As $19.66 Per Filter

  • PX05-9-78 Purtrex Replacement Water Filter

    PX05-9-78 Purtrex Replacement Water Filter

    As Low As $4.56 Per Filter

  • Pentek S1-BB Replacement Water Filter Cartridge

    S1-BB Pentek Replacement Filter Cartridge

    As Low As $5.40 Per Filter

  • ECP5-BB Pentek Comparable Whole House Sediment Water Filter by Tier1
  • CP5-BBS-D Culligan Comparable Whole House Water Filter by Tier1
  • S1-20BB Pentek Comparable Whole House Water Filter by Tier1
  • EP-5 Pentek Replacement Filter Cartridge
  • 600R American Plumber Undersink Filter Replacement Cartridge

    600R American Plumber Undersink Water Filter Cartridge

    $31.99 Retail Price:  $35.06
  • DW-2000-RB American Plumber Replacement Filter Cartridge

    DW-2000-RB American Plumber Replacement Filter Cartridge

    $59.99 Retail Price:  $61.28
  • DW-200-R American Plumber Undersink Filter Replacement Cartridge
  • RWC-5 American Plumber Undersink Filter Replacement Cartridge
  • W10-PR American Plumber Whole House Filter System

    W10-PR American Plumber Whole House Filter System

    $59.99 Retail Price:  $67.84
  • W20CLA American Plumber Whole House Sediment Filter Cartridge (2-Pack)
  • W20CLHD American Plumber Whole House Heavy Duty Filter Cartridge
  • W20CLHD20 American Plumber Whole House 20-inch Heavy Duty Filter Cartridge
  • W25P American Plumber Whole House Sediment Filter Cartridge (2-Pack)
  • W30PE American Plumber Whole House Sediment Filter Cartridge (2-Pack)
  • W30PEHD American Plumber Whole House Heavy Duty Filter Cartridge
  • W30W American Plumber Whole House Sediment Water Filter Cartridge (2-Pack)
  • W385-PR American Plumber Undersink Compact Filter System

    W385-PR American Plumber Undersink Compact Filter System

    $19.99 Retail Price:  $28.74
  • W50PE American Plumber Whole House Sediment Filter Cartridge (2-Pack)
  • W50PEHD American Plumber Whole House Heavy Duty Filter Cartridge
  • W50W American Plumber Whole House Sediment Filter Cartridge (2-Pack)
  • W5CIP American Plumber Undersink Filter Replacement Cartridge (2-Pack)
  • W5CIP478 American Plumber Undersink Compact Filter Replacement Cartridge (2-Pack)
  • W5P American Plumber Whole House Sediment Filter Cartridge (2-Pack)
  • W5W American Plumber Whole House Sediment Filter Cartridge (2-Pack)
  • WCC American Plumber Undersink Filter Replacement Cartridge
  • WGC478 American Plumber Undersink Compact Filter Replacement Cartridge
  • WGCHD American Plumber Undersink Water Filter Replacement Cartridge
  • WIC-600 American Plumber Undersink Filter System

    WIC-600 American Plumber Undersink Filter System

    $55.99 Retail Price:  $58.34
  • WIC-6A American Plumber Inline Icemaker Filter

    WIC-6A American Plumber Inline Icemaker Filter

    $13.99 Retail Price:  $14.94
  • WICA American Plumber Inline Filter with 1/4 inch Quick-Connect Fittings
  • WICSA American Plumber Inline Filter with 1/4 inch Quick-Connect Fittings
  • WPD-110 American Plumber Whole House Sediment Filter Cartridge (2-Pack)

Items 1 to 48 of 95 total

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