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 138 total

Page:
  1. 1
  2. 2
  3. 3

Grid  List 

Set Descending Direction
  • W20CLA American Plumber Comparable Whole House Water Filter by Tier1
  • EPM-20 Pentek Comparable Whole House Water Filter by Tier1

    EPM-20 Pentek Comparable Whole House Water Filter by Tier1

    $11.99
    MSRP: $20.99
    Save 43%
  • RS1SS OmniFilter Comparable Whole House Water Filter by Tier1
  • ECP50-BB Pentek Comparable Whole House Sediment Filter by Tier1
  • ECP1-20BB Pentek Comparable Whole House Sediment Water Filter by Tier1
  • ECP5-20BB Pentek Comparable Whole House Sediment Water Filter by Tier1
  • UVBB-120-1 Pentek UV System

    UVBB-120-1 Pentek UV System

    $434.99
    MSRP: $594.54
    Save 27%
  • W20CLA American Plumber Whole House Sediment Filter Cartridge (2-Pack)
  • W25P American Plumber Whole House Sediment Filter Cartridge (2-Pack)
  • W30PE American Plumber Whole House Sediment Filter Cartridge (2-Pack)
  • W30W American Plumber Whole House Sediment Water Filter Cartridge (2-Pack)
  • W50PE American Plumber Whole House Sediment Filter Cartridge (2-Pack)
  • W50W American Plumber Whole House Sediment Filter Cartridge (2-Pack)
  • W5P American Plumber Whole House Sediment Filter Cartridge (2-Pack)
  • WPD-110 American Plumber Whole House Sediment Filter Cartridge (2-Pack)
  • WROM-25T American Plumber Reverse Osmosis Membrane

    WROM-25T American Plumber Reverse Osmosis Membrane

    $96.99
    MSRP: $113.84
    Save 15%
  • 3M Aqua-Pure AP110-2 Whole House Water Filter Cartridge
  • 3M Aqua-Pure AP460 Replacement Filter Cartridge
  • 3M Aqua-Pure AP815-2 Whole House Water Filter
  • 3M Aqua-Pure AP817 Whole House Water Filter Cartridge
  • CQE-WH-01132 Crystal Quest 2.0 Whole House Nitrate Filter System

    CQE-WH-01132 Crystal Quest 2.0 Whole House Nitrate Filter System

    $1,659.99
    MSRP: $1,911.29
    Save 13%
  • CQE-WH-01215 Crystal Quest Multi 1.5 Whole House Iron Hydrogen Sulfide Filter System
  • CW-F-D Culligan Level 3 Whole House Filter Replacement Cartridge (2-Pack)
  • R50-BBSa-D Culligan Level 1 Whole House Filter Replacement Cartridge
  • S1A Culligan Level 2 Whole House Filter Replacement Cartridge (2-Pack)
  • 4WH-QCTO-S01 Filtrete Whole House Filter System

    4WH-QCTO-S01 3M Filtrete Whole House Water Filtration System

    $120.99
    MSRP: $174.79
    Save 31%
  • 4WH-QS-S01 Filtrete Whole House Filter System

    4WH-QS-S01 3M Filtrete Whole House Water Filtration System

    $109.99
    MSRP: $128.79
    Save 15%
  • SDC-25-2005 Hydronix Whole House Replacement Sediment Filter Cartridge
  • SDC-25-2020 Hydronix Whole House Replacement Sediment Filter Cartridge
  • SDC-25-3005 Hydronix Whole House Replacement Sediment Filter Cartridge
  • 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
  • WP-30 Pentek Whole House Filter Replacement Cartridge

    WP-30 Pentek Whole House Filter Replacement Cartridge

    $6.99
    MSRP: $8.15
    Save 14%
  • WP-5 Pentek Replacement Filter Cartridge

    WP-5 Pentek Replacement Filter Cartridge

    $6.99
    MSRP: $8.84
    Save 21%
  • BF7-S-05 OmniFilter Undersink Filter System

    BF7-S-05 OmniFilter Undersink Water Filtration System

    $69.99
    MSRP: $82.79
    Save 15%
  • RS15 OmniFilter Whole House Replacement Filter Cartridge
  • RS16 OmniFilter Whole House Replacement Filter Cartridge
  • RS19 OmniFilter Reusable Screen Filter Cartridge

    RS19 OmniFilter Reusable Screened Water Filter Cartridge

    $14.49
    MSRP: $20.99
    Save 31%
  • 150574 Pentek Filter Housing - Blue

    150574 Pentek Filter Housing - Blue

    $33.99
    MSRP: $34.26
    Save 1%
  • 166227 Pentek Big White 3/4-inch #20 Housing Assembly
  • 3G-STANDARD-20-CLEAR-PR20 Pentek Whole House 20 inch Filter Housing
  • 3G-STANDARD-34-PR10 Pentek Whole House 3G Standard 10 inch Filter Housing
  • 3G-STANDARD-34-PR20 Pentek Whole House Standard 20 inch Filter Housing
  • BFS-201 Pentek Slim Line Filter Housing with Pressure Relief Valve
  • BIG-CLEAR-LX-10 Pentek Big Clear Whole House 10 inch Filter Housing
  • W20FFPH1CBPR Watts Flowmatic Big Clear Whole House Water Filter Housing
  • 1-100STSS-F Rusco Stainless Steel Sediment Trapper System

    1-100STSS-F Rusco Stainless Steel Sediment Trapper System

    $88.99
    MSRP: $104.64
    Save 15%

Items 1 to 48 of 138 total

Page:
  1. 1
  2. 2
  3. 3

Grid  List 

Set Descending Direction
Scroll To Top