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 Filters & Air Filters Brands

Whether you’re looking to replace your inline water filter or trying to find the best air purifiers, we can help you by providing quality filters for less. Discount Filter Store offers the top filter brands, such as PUR, Honeywell, and ZeroWater to help make sure that you have worry-free water. Our helpful experts are also here to make sure you find the filter you need. Give us a call at 1-800-277-3458, and we’ll answer your filter questions from reverse osmosis water filtration systems to air humidifiers, to get you to the product you need.

Clear All
Compare

Items 1 to 48 of 248 total

Page:
  1. 1
  2. 2
  3. 3
  4. 4
  5. 5

Grid  List 

Set Ascending Direction
  • 3M AquaPure 3MFF101 Whole House Water Filter Cartridge

    3MFF101 3M Aqua-Pure Replacement Water Filter Cartridge

    $200.99
    MSRP: $209.29
    Save 4%
  • 2650 Pro Products Siphoning Feeder System

    2650 Pro Products Siphoning Feeder System

    $200.99
    MSRP: $233.44
    Save 14%
  • SST1HA 3M Aqua-Pure Water Filter System Housing
  • XLE-2540 Filmtec Extra Low Energy Commercial Reverse Osmosis Membrane
  • Tier1 1900 Air Filter - 18x30x4 (6-Pack)

    Tier1 1900 Air Filter - 18x30x4 (6-Pack)

    $204.99
    MSRP: $207.34
    Save 1%
  • 3M Aqua-Pure AP902 Whole House Water Filter

    AP902 3M Aqua-Pure Whole House Water Filtration System

    $204.99
    MSRP: $238.04
    Save 14%
  • Tier1 1500 Air Filter - 20x34x4 (6-Pack)

    Tier1 1500 Air Filter - 20x34x4 (6-Pack)

    $205.99
    MSRP: $208.34
    Save 1%
  • Tier1 1500 Air Filter - 22x26x4 (6-Pack)

    Tier1 1500 Air Filter - 22x26x4 (6-Pack)

    $205.99
    MSRP: $208.34
    Save 1%
  • Tier1 1500 Air Filter - 22x28x4 (6-Pack)

    Tier1 1500 Air Filter - 22x28x4 (6-Pack)

    $205.99
    MSRP: $208.34
    Save 1%
  • 8013619 Katadyn Pocket Replacement Camping Water Filter Kit

    8013619 Katadyn Pocket Replacement Camping Water Filter Kit

    $206.99
    MSRP: $257.99
    Save 20%
  • PS-200 HM Digital Water Test Meter
  • PSC-150 HM Digital Commercial Controller and Monitor
  • Filtrete 1000 Micro Allergen Filter - 14x36x1 (6-Pack)
  • SW30-2521 Filmtec Seawater Desalination Reverse Osmosis Membrane
  • Tier1 1900 Air Filter - 24x25x4 (6-Pack)

    24x25x4 Merv 13 Universal Air Filter By Tier1 (6-Pack)

    $213.99
    MSRP: $216.34
    Save 1%
  • C100 Aquagate Leak Controller
  • Tier1 1500 Air Filter - 24x28x4 (6-Pack)

    Tier1 1500 Air Filter - 24x28x4 (6-Pack)

    $214.99
    MSRP: $217.34
    Save 1%
  • 602855 Trojan UV Max UV Lamp
  • Tier1 1500 Air Filter - 20x32x4 (6-Pack)

    Tier1 1500 Air Filter - 20x32x4 (6-Pack)

    $215.99
    MSRP: $218.34
    Save 1%
  • Tier1 1500 Air Filter - 24x30x4 (6-Pack)

    Tier1 1500 Air Filter - 24x30x4 (6-Pack)

    $215.99
    MSRP: $218.34
    Save 1%
  • Tier1 1900 Air Filter - 16x32x4 (6-Pack)

    Tier1 1900 Air Filter - 16x32x4 (6-Pack)

    $215.99
    MSRP: $218.34
    Save 1%
  • Tier1 1900 Air Filter - 16x36x4 (6-Pack)

    Tier1 1900 Air Filter - 16x36x4 (6-Pack)

    $215.99
    MSRP: $218.34
    Save 1%
  • Tier1 600 Air Filter - 24x36x4 (6-Pack)
  • Tier1 1900 Air Filter - 15x30x4 (6-Pack)

    Tier1 1900 Air Filter - 15x30x4 (6-Pack)

    $216.99
    MSRP: $219.34
    Save 1%
  • FAP03-RS (19x18 rooms) Filtrete Ultra Clean Air Purifier
  • 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%
  • Tier1 1500 Air Filter - 30x30x4 (6-Pack)

    Tier1 1500 Air Filter - 30x30x4 (6-Pack)

    $219.99
    MSRP: $222.34
    Save 1%
  • GL05N Pro Products Corrosion Control Poly Guard Liquid (5 Gallons)
  • Tier1 1500 Air Filter - 20x36x4 (6-Pack)

    Tier1 1500 Air Filter - 20x36x4 (6-Pack)

    $223.99
    MSRP: $226.34
    Save 1%
  • BBFS-222 Pentek Three Housing Filter System

    BBFS-222 Pentek Three Housing Filter System

    $224.99
    MSRP: $331.43
    Save 32%
  • Tier1 1900 Air Filter - 24x28x4 (6-Pack)

    Tier1 1900 Air Filter - 24x28x4 (6-Pack)

    $226.99
    MSRP: $229.34
    Save 1%
  • 31040 Hydrologic Stealth-RO200 Reverse Osmosis Water Filtration System
  • 01009334 Culligan Booster Pump
  • 1240632 Merlin Booster Pump

    1240632 Merlin Booster Pump

    $229.99
    MSRP: $255.29
    Save 10%
  • Tier1 1900 Air Filter - 15x36x4 (6-Pack)

    Tier1 1900 Air Filter - 15x36x4 (6-Pack)

    $230.99
    MSRP: $233.34
    Save 1%
  • RO-PL5000 PuROLine Reverse Osmosis Filter System

    RO-PL5000 PuROLine Reverse Osmosis Filter System

    $232.39
    MSRP: $318.99
    Save 27%
  • AG4021TF Desal Commercial Reverse Osmosis Membrane

    AG4021TF Desal Commercial Reverse Osmosis Membrane

    $232.99
    MSRP: $270.24
    Save 14%
  • Tier1 1900 Air Filter - 22x28x4 (6-Pack)

    Tier1 1900 Air Filter - 22x28x4 (6-Pack)

    $232.99
    MSRP: $235.34
    Save 1%
  • TW30-2540 Filmtec Commercial Reverse Osmosis Membrane

    TW30-2540 Filmtec Commercial Reverse Osmosis Membrane

    $233.99
    MSRP: $236.34
    Save 1%
  • 3M AquaPure 3MFF100 Drinking Water Filter System
  • Tier1 1900 Air Filter - 20x32x4 (6-Pack)

    Tier1 1900 Air Filter - 20x32x4 (6-Pack)

    $235.99
    MSRP: $238.34
    Save 1%
  • Tier1 1900 Air Filter - 20x34x4 (6-Pack)

    Tier1 1900 Air Filter - 20x34x4 (6-Pack)

    $235.99
    MSRP: $238.34
    Save 1%
  • Tier1 1900 Air Filter - 22x26x4 (6-Pack)

    Tier1 1900 Air Filter - 22x26x4 (6-Pack)

    $235.99
    MSRP: $238.34
    Save 1%
  • LSJC10RC Lifesaver 10000UF Jerrycan Replacement Filter Cartridge
  • PS-202 HM Digital Controller
  • ST-2 Pentek Filter Housing - Stainless Steel

    ST-2 Pentek Filter Housing - Stainless Steel

    $239.89
    MSRP: $368.99
    Save 35%
  • 3M Aqua-Pure AP903 Water Filter System

    AP903 3M Aqua-Pure Water Filtration System

    $239.99
    MSRP: $342.69
    Save 30%

Items 1 to 48 of 248 total

Page:
  1. 1
  2. 2
  3. 3
  4. 4
  5. 5

Grid  List 

Set Ascending Direction
Scroll To Top