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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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  • S1A-D Culligan Comparable Whole House Sediment Water Filter 2-Pack by Tier1
  • EPM-20 Pentek Comparable Whole House Water Filter by Tier1
  • EPM-20BB Pentek Comparable Whole House Water Filter by Tier1
  • PD-25-934 Pentek Comparable Whole House Water Filter by Tier1
  • TIER1-DGD1-20BB Whole House Sediment Water Filter
  • R30-20BB Pentek Comparable Whole House Sediment Water Filter by Tier1
  • Pentek 255579-43 Inline Sediment Water Filter Replacement
  • CB1-10 Pentek Carbon Block Water Filter Replacement

    CB1-10 Pentek Carbon Block Water Filter Replacement

    $14.99 Retail Price:  $19.99
  • 150564 Pentek Whole House Water Filter System (Clear/ Blue)
  • 255541-43 Pentek Inline Water Filter Replacement
  • 150072 Pentek 3/4-inch #10 Standard Blue/Clear Filter Housing
  • 158098 Pentek Slim Line Water Filter Housing System

    158098 Pentek Slim Line Water Filter Housing System

    $15.99 Retail Price:  $19.99
  • 158203 Pentek Slim Line Black/Blue w/PR Water Filter System
  • Pentek 158599 Clear 3G Slim Line Filter Housing

    Pentek 158599 Clear 3G Slim Line Filter Housing

    $22.99 Retail Price:  $28.99
  • 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
  • Pentek 150236 Big Blue Heavy Duty Filter Housing

    Pentek 150236 Big Blue Heavy Duty Filter Housing

    $58.99 Retail Price:  $73.99
  • Pentek 158214 Clear Traditional Slim Line Filter Housing

    Pentek 158214 Clear Traditional Slim Line Filter Housing

    $27.99 Retail Price:  $37.99
  • WB-HB-20-20W Harmsco Pleated Commercial Water Filter Cartridge
  •  WB-HB-20-50W Harmsco Pleated Commercial Water Filter Cartridge
  • 150240 Pentek 10-inch Big Blue Housing

    150240 Pentek 10-inch Big Blue Housing

    $29.99 Retail Price:  $42.00
  • P5-10 Tier1 Sediment Water Filter (4-pack)
  • P5-10BB Tier1 Sediment Water Filter (4-pack)
  • P5-20BB Tier1 Whole House Sediment Water Filter (2-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)

Items 1 to 48 of 424 total

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