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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!

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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 177 total

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  • EPM-20 Pentek Comparable Whole House Water Filter by Tier1
  • RS1SS OmniFilter Comparable Whole House Water Filter by Tier1
  • RS6 OmniFilter Comparable Whole House Water Filter by Tier1
  • TIER1-DGD1-20BB Whole House Sediment Water Filter
  • AP-GRMB-05PP-20UB Whole House Replacement Filter by 3M Aqua-Pure
  • AP-GRMB-10PP-20UB Whole House Replacement Cartridge by 3M Aqua-Pure
  • AP-GRMB-20PP-20UB Whole House Water Filter Replacement Cartridge
  • AP-GRMB-50PP-20UB Whole House Water Filter Replacement Cartridge
  • FRSS-12 Viqua 12 GPM 1-inch Flow Restrictor

    FRSS-12 Viqua 12 GPM 1-inch Flow Restrictor

    $64.99 Retail Price:  $110.00
  • FRSS-15 Viqua 15 GPM 1-inch Flow Restrictor

    FRSS-15 Viqua 15 GPM 1-inch Flow Restrictor

    $62.99 Retail Price:  $110.00
  • FRSS-20 Viqua 20 GPM 1-inch Flow Restrictor

    FRSS-20 Viqua 20 GPM 1-inch Flow Restrictor

    $62.99 Retail Price:  $110.00
  • Pentek 150236 Big Blue Heavy Duty Filter Housing

    Pentek 150236 Big Blue Heavy Duty Filter Housing

    $58.99 Retail Price:  $73.99
  • WB-HB-20-20W Harmsco Pleated Commercial Water Filter Cartridge
  •  WB-HB-20-50W Harmsco Pleated Commercial Water Filter Cartridge
  • P5-10BB Tier1 Sediment Water Filter (4-pack)
  • SPC-45-1030 Hydronix Pleated Sediment Water Filter (6-Pack)
  • CW-MF Pentek Whole House Filter Replacement Cartridge (6-Pack)
  • DGD-2501 Pentek Whole House Filter Replacement Cartridge (6-Pack)
  • DGD-7525 Pentek Whole House Replacement Sediment Filter (6-Pack)
  • ECP20-20 Pentek Replacement Filter Cartridge (6-Pack)
  • ECP20-BB Pentek Replacement Filter Cartridge (6-Pack)
  • ECP5-20 Pentek Replacement Filter Cartridge (6-Pack)
  • P5-20 Pentek Whole House Filter Replacement Cartridge (12-Pack)
  • Hydronix SDC-45-1020 Sediment Filter Cartridge
  • Hydronix SDC-45-2001 Whole House Sediment Filter Cartridge
  • Hydronix SDC-45-2005 Whole House Sediment Filter Cartridge
  • SDC-45-2010 Hydronix Water Filter Cartridge

    SDC-45-2010 Hydronix Sediment Water Filter Cartridge

    As Low As $19.16 Per Filter

  • SDC-45-2020 Hydronix Sediment Water Filter

    SDC-45-2020 Hydronix Sediment Water Filter Cartridge

    As Low As $18.83 Per Filter

  • Hydronix SPC-45-1005 Whole House Sediment Filter Cartridge
  • Hydronix SPC-45-1030 Sediment Water Filter - Pleated

    SPC-45-1030 Hydronix Pleated Sediment Water Filter

    As Low As $11.00 Per Filter

  • SPC-45-2020 Hydronix Pleated Sediment Filter
  • SPC-45-2050 Hydronix Pleated Sediment Water Filter
  • Pentek CW-MF Whole House Water Filter Replacement Cartridge

    CW-MF Pentek Whole House Filter Replacement Cartridge

    As Low As $5.60 Per Filter

  • DGD-2501-20 Pentek Whole House Sediment Filter
  • DGD-2501 Pentek Whole House Water Filter
  • DGD-5005-20 Pentek Whole House Water Filter
  • DGD-5005 Pentek Whole House Filter Cartridge
  • DGD-7525-20 Pentek Whole House Water Filter
  • DGD-7525 Pentek Whole House Sediment Filter

Items 1 to 48 of 177 total

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