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!

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  • You’re guaranteed to find expert help!

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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.

Items 1 to 48 of 70 total

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  • AF-10-2010 Aries GAC/KDF Water Filter Cartridge

    AF-10-2010 Aries GAC/KDF Water Filter Cartridge

    $16.99
    MSRP: $22.99
    Save 26%
  • APS117 3M Aqua-Pure Comparable Whole House Carbon Water Filter by Tier1
  • D-20 Culligan Comparable Whole House Carbon Water Filter by Tier1
  • CFS117 Cuno Comparable Whole House Sediment Water Filter by Tier1
  • HDG-P117 Hydronix Comparable Whole House Sediment Water Filter by Tier1
  • WHKF-GAC AP117 Whirlpool Comparable Whole House Sediment Water Filter by Tier1
  • OmniFilter RS12-SS6-05 Polypropylene Sediment Filter

    OmniFilter RS12-SS6-05 Polypropylene Sediment Filter

    $5.29
    MSRP: $11.99
    Save 56%
  • W25P American Plumber Whole House Sediment Filter Cartridge (2-Pack)
  • W5CIP American Plumber Undersink Filter Replacement Cartridge (2-Pack)
  • W5P American Plumber Whole House Sediment Filter Cartridge (2-Pack)
  • P1-D Culligan Level 4 Whole House Filter Replacement Cartridge (2-Pack)
  • P5-D Culligan Level 4 Whole House Filter Replacement Cartridge (2-Pack)
  • RFC-BBS-D Culligan Level 4 Whole House Filter Replacement Cartridge
  • CFS8812X Cuno Whole House Filter Replacement Cartridge

    CFS8812X Cuno Whole House Filter Replacement Cartridge

    $66.05
    MSRP: $71.29
    Save 7%
  • CFS8812X-S Cuno Whole House Filter Replacement Cartridge

    CFS8812X-S Cuno Whole House Filter Replacement Cartridge

    $74.99
    MSRP: $77.04
    Save 3%
  • CFS9812X Cuno Whole House Filter Replacement Cartridge

    CFS9812X Cuno Whole House Filter Replacement Cartridge

    $66.99
    MSRP: $72.09
    Save 7%
  • CFS9812X-S Cuno Whole House Filter Replacement Cartridge

    CFS9812X-S Cuno Whole House Filter Replacement Cartridge

    $65.05
    MSRP: $78.19
    Save 17%
  • HF20 Cuno Whole House Filter Replacement Cartridge

    HF20 Cuno Whole House Filter Replacement Cartridge

    $50.05
    MSRP: $80.49
    Save 38%
  • HF20-MS Cuno Whole House Filter Replacement Cartridge

    HF20-MS Cuno Whole House Filter Replacement Cartridge

    $71.99
    MSRP: $73.36
    Save 2%
  • HF20-S Cuno Whole House Filter Replacement Cartridge

    HF20-S Cuno Whole House Filter Replacement Cartridge

    $68.99
    MSRP: $86.24
    Save 20%
  • PW4040C1027 Desal Ultrafiltration Reverse Osmosis Membrane

    PW4040C1027 Desal Ultrafiltration Reverse Osmosis Membrane

    $999.99
    MSRP: $1,152.29
    Save 13%
  • 8000T Digiflow Water Flow Meter

    8000T Digiflow Water Flow Meter

    $36.39
    MSRP: $48.99
    Save 26%
  • 4CB5 Everpure Replacement Filter Cartridge

    4CB5 Everpure Replacement Filter Cartridge

    $53.49
    MSRP: $83.99
    Save 36%
  • DEV9108-17 Everpure CostGuard CG5-10S Undersink Filter Replacement Cartridge
  • EV9324-01 Everpure Ice Machine Filter System

    EV9324-01 Everpure Ice Machine Filter System

    $218.99
    MSRP: $273.69
    Save 20%
  • EV9612-56 Everpure MC2 Replacement Filter Cartridge

    EV9612-56 Everpure MC2 Replacement Filter Cartridge

    $83.49
    MSRP: $114.99
    Save 27%
  • EV9617-21 Everpure 4CB5-S Replacement Filter Cartridge

    EV9617-21 Everpure 4CB5-S Replacement Filter Cartridge

    $73.79
    MSRP: $93.99
    Save 21%
  • EV9617-36 Everpure 4CB5-K Replacement Filter Cartridge

    EV9617-36 Everpure 4CB5-K Replacement Filter Cartridge

    $69.00
    MSRP: $81.65
    Save 15%
  • i20002 Everpure Replacement Filter Cartridge

    Everpure i2000(2) Replacement Filter Cartridge

    $80.19
    MSRP: $118.99
    Save 33%
  • 22140 Hydrologic TallBoy Sediment Filter

    22140 Hydrologic TallBoy Sediment Filter

    $9.99
    MSRP: $13.79
    Save 28%
  • 36005 Hydrologic SmallBoy De-Chlorinator and Sediment Filter System With Upgraded KDF
  • CB-25-1005 Hydronix Replacement Filter Cartridge

    CB-25-1005 Hydronix Replacement Filter Cartridge

    $10.69
    MSRP: $14.99
    Save 29%
  • CB-25-2010 Hydronix Replacement Filter Cartridge

    CB-25-2010 Hydronix Replacement Filter Cartridge

    $15.99
    MSRP: $23.99
    Save 33%
  • GAC-10 Pentek Undersink Filter Replacement Cartridge

    GAC-10 Pentek Undersink Filter Replacement Cartridge

    $13.89
    MSRP: $19.99
    Save 31%
  • PS1-10C Pentek Whole House Replacement Sediment Filter Cartridge
  • PS20-10C Pentek Whole House Replacement Sediment Filter Cartridge
  • SSMRC1 Scotsman Ice Machine Replacement Water Filter

    SSMRC1 Scotsman Ice Machine Replacement Water Filter

    $117.69
    MSRP: $178.99
    Save 34%
  • FXS-CM-S3 Sprite ShowerUp Shower Filter System and Extension Arm
  • 1120070 Katadyn Siphon Filter

    1120070 Katadyn Siphon Filter

    $79.95
    MSRP: $94.24
    Save 15%
  • MATRIKX-5-10 KX Technologies MatrikX Undersink Filter Replacement Cartridge
  • MATRIKX-CTO2-10 KX Technologies MatrikX Undersink Filter Replacement Cartridge
  • MATRIKX-Pb1-20 KX Technologies MatrikX Whole House Filter Replacement Cartridge
  • MATRIKX-Pb1-HD10 KX Technologies MatrikX Undersink Filter Replacement Cartridge
  • LSJC20 Lifesaver 20000UF Jerrycan
  • LSJC20RC Lifesaver 20000UF Jerrycan Replacement Filter Cartridge
  • K00374 Manitowoc Arctic Pure Replacement Ice Maker Filter Cartridge

    K00374 Manitowoc Arctic Pure Ice Maker Filter Cartridge

    $48.09
    MSRP: $81.99
    Save 41%
  • C8 Pentek Whole House Replacement Filter Cartridge
  • CC-10 Pentek Undersink Filter Replacement Cartridge

    CC-10 Pentek Undersink Filter Replacement Cartridge

    $15.99
    MSRP: $21.99
    Save 27%

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