Discount Water Filters and Air Filters at Discount Filter Store.com

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!
  • Our customer service team is guaranteed to answer your call!
  • You’re guaranteed to find expert help!

Learn more about our No Worries Guarantee

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 190 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%
  • 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%
  • 650580 Viqua Professional UV Water Disinfection System Sensor

    650580 Viqua Professional UV Water Disinfection System Sensor

    $293.99
    MSRP: $430.00
    Save 32%
  • 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%
  • ECP5-BB Pentek Comparable Whole House Sediment Water Filter by Tier1 (25-Pack)
  • 650717-001 Viqua E4/F4 Solenoid Valve Kit with Junction Box

    650717-001 Viqua E4/F4 Solenoid Valve Kit with Junction Box

    $325.99
    MSRP: $595.00
    Save 45%
  • 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

    S5Q-PV Viqua Specialty UltraViolet Water Disinfection System

    $399.99
    MSRP: $526.00
    Save 24%
  • 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%
  • 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+

    650695-R D4+ Viqua Home Plus UltraViolet Water Disinfection System

    $1,065.99
    MSRP: $1,395.00
    Save 24%
  • 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
  • 3M Aqua-Pure SS20 EPE-316L Whole House Stainless Steel Filter Housing
  • 3M Aqua-Pure SS24 EPE-316L Whole House Stainless Steel Filter Housing
  • VIQUA-PRO30
  • 3M Aqua-Pure SS36 EPE-316L Whole House Stainless Steel Filter Housing
  • VIQUA-PRO50
  • 3M Aqua-Pure SS48 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%
  • MPST-1 Pentek Multi-Purpose Cartridge and Bag Filter Housing - Stainless Steel
  • 650652 Trojan UV Max UV System
  • 650653 Trojan UV Max UV System
  • 3M AquaPure 3MFF101 Whole House Water Filter Cartridge

    3MFF101 3M Aqua-Pure Replacement Water Filter Cartridge

    $200.99
    MSRP: $209.29
    Save 4%
  • SST1HA 3M Aqua-Pure Water Filter System Housing
  • XLE-2540 Filmtec Extra Low Energy Commercial Reverse Osmosis Membrane
  • 3M Aqua-Pure AP902 Whole House Water Filter

    AP902 3M Aqua-Pure Whole House Water Filtration System

    $204.99
    MSRP: $238.04
    Save 14%
  • 31040 Hydrologic Stealth-RO200 Reverse Osmosis Water Filtration System
  • EV9324-01 Everpure Ice Machine Filter System

    EV9324-01 Everpure Ice Machine Filter System

    $218.99
    MSRP: $273.69
    Save 20%
  • AG2540TF Desal Reverse Osmosis Membrane

    AG2540TF Desal Reverse Osmosis Membrane

    $219.99
    MSRP: $226.54
    Save 3%

Items 1 to 48 of 190 total

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