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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 92 total

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  • Hydronix HF2-10CLWH12 Clear 10 inch Filter Housing
  • VH410M Viqua Home Plus UltraViolet Water Disinfection System

    VH410M Viqua Home Plus UltraViolet Water Disinfection System

    $875.99 Retail Price:  $1125.00
  • VIQUA-E4
  • VIQUA-E4-V
  • 150564 Pentek Whole House Water Filter System (Clear/ Blue)
  • 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
  • Hydronix HF45-10BLBK15 Filter Housing (Blue)

    Hydronix HF45-10BLBK15 Filter Housing (Blue)

    $59.99 Retail Price:  $75.99
  • PL44-122NAC15 Pentek Bag Filter Housing - Carbon Steel
  • W10-PR American Plumber Whole House Filter System

    W10-PR American Plumber Whole House Filter System

    $59.99 Retail Price:  $67.84
  • W385-PR American Plumber Undersink Compact Filter System

    W385-PR American Plumber Undersink Compact Filter System

    $19.99 Retail Price:  $28.74
  • 3M Aqua-Pure AP101T Whole House Water Filter

    AP101T 3M Aqua-Pure Whole House Water Filtration System

    $103.99 Retail Price:  $137.99
  • 3M Aqua-Pure AP200 Under Sink Water Filter

    AP200 3M Aqua-Pure Undersink Water Filtration System

    Regular Price: $104.99

    Special Price: $87.05

  • 3M Aqua-Pure AP217 Under Sink Water Filter
  • 3M Aqua-Pure AP430SS Water Heater Scale Inhibitor

    AP430SS 3M Aqua-Pure Water Heater Scale Inhibitor System

    $70.99 Retail Price:  $90.84
  • 3M Aqua-Pure AP431 Inline Filter Replacement Cartridge

    AP431 3M Aqua-Pure Inline Filter Replacement Cartridge

    $30.99 Retail Price:  $33.25
  • 3M Aqua-Pure AP717 Inline Water Filter

    AP717 3M Aqua-Pure Inline Filter System

    $25.99 Retail Price:  $34.49
  • 3M Aqua-Pure AP903 Water Filter System

    AP903 3M Aqua-Pure Water Filtration System

    $239.99 Retail Price:  $342.69
  • 3M Aqua-Pure AP910R Water Filter

    AP910R 3M Aqua-Pure Replacement Filter Cartridge

    $118.99 Retail Price:  $128.79
  • 3M Aqua-Pure AP917R Water Filter Cartridge
  • CFS01S Cuno Whole House Filter Housing

    CFS01S Cuno Whole House Water Filter Housing

    $132.05 Retail Price:  $152.94
  • CFS02S Cuno Whole House Filter Housing

    CFS02S Cuno Whole House Water Filter Housing

    $184.49 Retail Price:  $214.46
  • CFS11S Cuno Whole House Filter Housing

    CFS11S Cuno Whole House Filter Housing

    $95.99 Retail Price:  $101.19
  • CFS22 Cuno Whole House Filter Housing

    CFS22 Cuno Whole House Filter Housing

    $128.99 Retail Price:  $148.34
  • W9320004 Doulton Undersink Filter System

    W9320004 Doulton HIS Undersink Water Filtration System

    $176.16 Retail Price:  $204.88
  • OB5-S-05 OmniFilter Whole House Filter System

    OB5-S-05 OmniFilter Whole House Water Filtration System

    $29.99 Retail Price:  $36.79
  • HFPP-1-WPR10 Pentek Big Blue Whole House 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
  • HFPP-34-PR-20 Pentek Big Blue Whole House 20 inch Filter Housing
  • HFPP-1-PR10 Pentek Big Blue Whole House 10 inch Filter Housing
  • HFPP-1-PR20 Pentek Big Blue Whole House 20 inch Filter Housing
  • IC-101L Pentek Inline Filter

    IC-101L Pentek Inline Filter

    $8.99 Retail Price:  $12.98
  • SLIM-14-WPR5 Pentek Whole House Slim 5 inch Filter Housing
  • SLIM-38-PR5 Pentek Whole House Slim 5 inch Filter Housing
  • SLIM-CLEAR-14-WPR5 Pentek Whole House Slim 5 inch Filter Housing
  • PENTEK-SLIM-PR10-JG38 Pentek Undersink Filter 10 inch Housing
  • ST-1 Pentek Filter Housing - Stainless Steel

    ST-1 Pentek Filter Housing - Stainless Steel

    $167.99 Retail Price:  $191.81
  • ST-2 Pentek Filter Housing - Stainless Steel

    ST-2 Pentek Filter Housing - Stainless Steel

    $226.99 Retail Price:  $286.57
  • ST-3 Pentek Filter Housing - Stainless Steel

    ST-3 Pentek Filter Housing - Stainless Steel

    $283.99 Retail Price:  $345.79
  • ST-BC-4 Pentek Filter Housing - Stainless Steel

    ST-BC-4 Pentek Filter Housing - Stainless Steel

    $759.05 Retail Price:  $1009.11
  • ST-BC-8 Pentek Filter Housing - Stainless Steel

    ST-BC-8 Pentek Filter Housing - Stainless Steel

    $901.99 Retail Price:  $904.34
  • STANDARD-34-PR-10 Pentek Whole House Standard 10 inch Filter Housing
  • STANDARD-34-WPR-10 Pentek Whole House Standard 10 inch Filter Housing
  • STANDARD-CLEAR-34-PR10 Pentek Whole House Standard 10 inch Filter Housing
  • TS-101L Pentek Lime/Scale Inline Filter

    TS-101L Pentek Lime/Scale Inline Filter

    $11.99 Retail Price:  $15.28
  • VIH-34-PR10 Pentek Whole House Valve-in-Head 10 inch Filter Housing

Items 1 to 48 of 92 total

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