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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 200 total

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  • 602855 Viqua Water Disinfection System UV Lamp

    602855 Viqua Water Disinfection System UV Lamp

    $209.99
    MSRP: $279.00
    Save 25%
  • ECP1-10 Pentek Replacement Filter Cartridge (30-Pack)
  • ECP5-20 Pentek Replacement Filter Cartridge (20-Pack)
  • SWC-45-1001 Hydronix String-Wound Sediment Water Filter (20-Pack)
  • CHLORPLUS-10 Pentek Whole House Filter Replacement Cartridge (12-Pack)
  • DGD-2501 Pentek Whole House Filter Replacement Cartridge (20-Pack)
  • DGD-5005 Pentek Whole House Filter Replacement Cartridge (20-Pack)
  • ECP20-20 Pentek Replacement Filter Cartridge (20-Pack)
  • DGD-7525 Pentek Whole House Replacement Sediment Filter (20-Pack)
  • ECP20-BB Pentek Replacement Filter Cartridge (20-Pack)
  • 650703 Viqua Home UV Water Disinfection System Sensor

    650703 Viqua Home UV Water Disinfection System Sensor

    $241.99
    MSRP: $340.00
    Save 29%
  • 602856 Viqua Water Disinfection System UV Lamp

    602856 Viqua Water Disinfection System UV Lamp

    $245.99
    MSRP: $325.00
    Save 24%
  • BA-ICE-S Viqua UV Disinfection System Controller

    BA-ICE-C Viqua UV Disinfection System Controller

    $249.99
    MSRP: $379.00
    Save 34%
  • ECP5-BB Pentek Whole House Filter Replacement Cartridge (20-Pack)
  • 650580 Viqua Professional UV Water Disinfection System Sensor
  • 650627 Viqua PRO Solenoid Valve Kit

    650627 Viqua PRO Solenoid Valve Kit

    $315.99
    MSRP: $450.00
    Save 30%
  • 650713-007 Viqua UV Disinfection System Controller

    650713-007 Viqua UV Disinfection System Controller

    $315.99
    MSRP: $450.00
    Save 30%
  • 650717-001 Viqua E4/F4 Solenoid Valve Kit with Junction Box
  • Brondell H2O+ Circle Reverse Osmosis Water Filtration System
  • 650717-001 Viqua D4 Solenoid Valve Kit with Junction Box

    650717-001 Viqua D4 Solenoid Valve Kit with Junction Box

    $393.99
    MSRP: $565.00
    Save 30%
  • 3M Aqua-Pure APDWS1000 Undersink Water Filter System

    APDWS1000 Undersink Water Filter System by 3M Aqua-Pure

    $394.99
    MSRP: $397.34
    Save 1%
  • VIQUA-S5Q-PV
  • VIQUA-S8Q-PA

    S8Q-PA Viqua Home UltraViolet Water Disinfection System

    $415.99
    MSRP: $575.00
    Save 28%
  • Viqua VT4-DWS11 Ultraviolet Filtration System

    Viqua VT4-DWS11 Ultraviolet Filtration System

    $448.49
    MSRP: $529.99
    Save 15%
  • 650730-004 Viqua LightWise Upgrade Kit for Pro 10 Systems

    650730-004 Viqua LightWise Upgrade Kit for Pro 10 Systems

    $655.99
    MSRP: $1,027.99
    Save 36%
  • 650730-005 Viqua LightWise Upgrade Kit for the PRO 20

    650730-005 Viqua LightWise Upgrade Kit for Pro 20 Systems

    $655.99
    MSRP: $1,029.99
    Save 36%
  • 650730-006 Viqua LightWise Upgrade Kit for Pro 30 Systems

    650730-006 Viqua LightWise Upgrade Kit for Pro 30 Systems

    $655.99
    MSRP: $1,029.99
    Save 36%
  • DGD-5005-20 Pentek Whole House Filter Replacement Cartridge (50-Pack)
  • Viqua VP600 Cobalt Series UltraViolet Disinfection System
  • VH410M Viqua Home Plus UltraViolet Water Disinfection System

    VH410M Viqua Home Plus UltraViolet Water Disinfection System

    $875.99
    MSRP: $1,125.00
    Save 22%
  • VIQUA-E4
  • Viqua VP950 UltraViolet Water Disinfection System

    Viqua VP950 UltraViolet Water Disinfection System (46 gpm)

    $965.99
    MSRP: $1,275.00
    Save 24%
  • VIQUA-E4-V
  • VIQUA-IHS12-D4

    IHS12-D4 Viqua Home Plus UltraViolet Water Disinfection System

    $1,039.99
    MSRP: $1,385.00
    Save 25%
  • VIQUA-D4+
  • VIQUA-IHS22-D4

    IHS22-D4 Viqua Home Plus UltraViolet Water Disinfection System

    $1,125.99
    MSRP: $1,495.00
    Save 25%
  • IHS22-D4 Trojan UV Disinfection System
  • VIQUA-E4+
  • 3M Aqua-Pure SS12 EPE-316L Whole House Stainless Steel Filter Housing
  • 602855 Trojan UV Max UV Lamp
  • PL44-122NAC15 Pentek Bag Filter Housing - Carbon Steel
  • GP802AL2 Pentek Bag Filter Housing - Aluminum

    GP802AL2 Pentek Bag Filter Housing - Aluminum

    $999.99
    MSRP: $1,140.79
    Save 12%

Items 1 to 48 of 200 total

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