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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!
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  • 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 76 total

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  • AP-GRMB-20PP-20UB Whole House Water Filter Replacement Cartridge
  • AP-GRMB-20PP-10UB Whole House Water Filter Cartridge by 3M Aqua-Pure
  • WFDW120009W DuPont Universal Drinking Water Filter System
  • WFHD13001B DuPont Universal Heavy Duty Whole House Filtration System
  • WFDWC20001 DuPont Universal Drinking Water Carbon Block Cartridge
  • WFHDC3001 DuPont Universal Heavy Duty Pleated Poly Whole House Cartridge
  • WFPFC3002 DuPont Universal Whole House Pleated Poly Filter Cartridge (2-Pack)
  • WB-20-W Harmsco Pleated Commercial Water Filter Cartridge
  • 255541-43 Pentek Inline Water Filter Replacement
  • SPC-25-1020 Hydronix Pleated Sediment Water Filter (6-Pack)
  • SPC-45-1020 Hydronix 10 x 4.5 inch Pleated Sediment Water Filter 6pk
  • ECP20-20 Pentek Replacement Filter Cartridge (6-Pack)
  • ECP20-BB Pentek Replacement Filter Cartridge (6-Pack)
  • Hydronix SDC-45-1020 Sediment Filter Cartridge
  • SDC-45-2020 Hydronix Sediment Water Filter

    SDC-45-2020 Hydronix Sediment Water Filter Cartridge

    As Low As $18.83 Per Filter

  • SPC-25-1020 Hydronix Sediment Water Filter

    SPC-25-1020 Hydronix Pleated Sediment Water Filter

    As Low As $5.00 Per Filter

  • Hydronix SPC-45-1020 Pleated Sediment Water Filter
  • SPC-45-2020 Hydronix Pleated Sediment Filter
  • Pentek ECP20-20 Replacement Water Filter Cartridge

    ECP20-20 Pentek Replacement Filter Cartridge

    As Low As $11.25 Per Filter

  • Pentek ECP20-20BB Replacement Water Filter Cartridge

    ECP20-20BB Pentek Replacement Filter Cartridge

    As Low As $21.33 Per Filter

  • Pentek ECP20-BB Replacement Water Filter Cartridge

    ECP20-BB Pentek Replacement Filter Cartridge

    As Low As $12.00 Per Filter

  • GAC20-BB Pentek Whole House Water Filter
  • Pentek S1 Pleated Whole House Sediment Filter
  • RS1-SS OmniFilter Whole House Water Filter
  • SDC-45-1020 Hydronix Comparable Sediment Water Filter by Tier1
  • P20-20 Tier1 Sediment Water Filter

    P20-20 Tier1 Sediment Water Filter

    As Low As $5.24 Per Filter

  • Tier1 P20-20BB Whole House Replacement Sediment Filter Cartridge
  • Pentek S1-BB Replacement Water Filter Cartridge

    S1-BB Pentek Replacement Filter Cartridge

    As Low As $5.40 Per Filter

  • S1 Pentek Comparable Whole House Water Filter by Tier1
  • S1-20BB Pentek Comparable Whole House Water Filter by Tier1
  • OmniFilter RS12-SS6-05 Polypropylene Sediment Filter

    OmniFilter RS12-SS6-05 Polypropylene Sediment Filter

    $4.99 Retail Price:  $8.04
  • 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
  • WCC American Plumber Undersink Filter Replacement Cartridge
  • WGC478 American Plumber Undersink Compact Filter Replacement Cartridge
  • GAC1SS OmniFilter Series C Undersink Filter Replacement Cartridge
  • 801-20 Harmsco Replacement Filter Cartridge

    801-20 Harmsco Replacement Filter Cartridge

    $7.99 Retail Price:  $11.49
  • HB-20-20W Harmsco Calypso Blue Replacement Filter Cartridge

Items 1 to 48 of 76 total

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