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  • Your filters are guaranteed to be the right fit!
  • Our products are price match guaranteed!
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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 101 total

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  • IHS22-D4 Trojan UV Disinfection System
  • 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
  • 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
  • MPST-1 Pentek Multi-Purpose Cartridge and Bag Filter Housing - Stainless 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
  • AQUAPURE-AP200

    AQUAPURE-AP200

    Regular Price: $104.99

    Special Price: $87.05

  • AQUAPURE-AP217

    AQUAPURE-AP217

    $36.99
  • 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
  • AQUAPURE-AP717

    AQUAPURE-AP717

    $25.99 Retail Price:  $34.49
  • AQUA-PURE-AP903

    AQUA-PURE-AP903

    $239.99 Retail Price:  $342.69
  • AQUA-PURE-AP910R

    AQUA-PURE-AP910R

    $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
  • CUNO-CFS02S

    CUNO-CFS02S

    $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
  • PENTEK-HFPP-PR10

    PENTEK-HFPP-PR10

    $33.99 Retail Price:  $46.79
  • HFPP-1-PR20 Pentek Big Blue Whole House 20 inch Filter Housing
  • PENTEK-IC-101L

    PENTEK-IC-101L

    $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
  • PENTEK-ST-1

    PENTEK-ST-1

    $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

Items 1 to 48 of 101 total

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