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

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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.

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Items 1 to 48 of 68 total

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  • W10-PR American Plumber Whole House Filter System

    W10-PR American Plumber Whole House Filter System

    $59.99
    MSRP: $67.84
    Save 12%
  • W385-PR American Plumber Undersink Compact Filter System

    W385-PR American Plumber Undersink Compact Filter System

    $19.99
    MSRP: $28.74
    Save 30%
  • 3M Aqua-Pure AP101T Whole House Water Filter

    AP101T 3M Aqua-Pure Whole House Water Filtration System

    $103.99
    MSRP: $137.99
    Save 25%
  • 3M Aqua-Pure AP200 Under Sink Water Filter

    AP200 3M Aqua-Pure Undersink Water Filtration System

    $108.09
    MSRP: $160.99
    Save 33%
  • 3M Aqua-Pure AP217 Under Sink Water Filter
  • 3M Aqua-Pure AP430SS Water Heater Scale Inhibitor

    AP430SS 3M Aqua-Pure Water Heater Scale Inhibitor System

    $70.99
    MSRP: $90.84
    Save 22%
  • 3M Aqua-Pure AP903 Water Filter System

    AP903 3M Aqua-Pure Water Filtration System

    $239.99
    MSRP: $342.69
    Save 30%
  • 3M Aqua-Pure AP910R Water Filter

    AP910R 3M Aqua-Pure Replacement Filter Cartridge

    $118.99
    MSRP: $128.79
    Save 8%
  • 3M Aqua-Pure AP917R Water Filter Cartridge
  • CFS01S Cuno Whole House Filter Housing

    CFS01S Cuno Whole House Water Filter Housing

    $132.05
    MSRP: $152.94
    Save 14%
  • CFS02S Cuno Whole House Filter Housing

    CFS02S Cuno Whole House Water Filter Housing

    $184.49
    MSRP: $214.46
    Save 14%
  • CFS11S Cuno Whole House Filter Housing

    CFS11S Cuno Whole House Filter Housing

    $95.99
    MSRP: $101.19
    Save 5%
  • CFS22 Cuno Whole House Filter Housing

    CFS22 Cuno Whole House Filter Housing

    $128.99
    MSRP: $148.34
    Save 13%
  • W9320004 Doulton Undersink Filter System

    W9320004 Doulton HIS Undersink Water Filtration System

    $181.49
    MSRP: $235.99
    Save 23%
  • OB5-S-05 OmniFilter Whole House Filter System

    OB5-S-05 OmniFilter Whole House Water Filtration System

    $29.99
    MSRP: $36.79
    Save 18%
  • PL44-122NAC15 Pentek Bag Filter Housing - Carbon Steel
  • SLIM-14-WPR5 Pentek Whole House Slim 5 inch Filter Housing

    SLIM-14-WPR5 Pentek Whole House Slim 5 inch Filter Housing

    $12.99
    MSRP: $17.24
    Save 25%
  • SLIM-38-PR5 Pentek Whole House Slim 5 inch Filter Housing

    SLIM-38-PR5 Pentek Whole House Slim 5 inch Filter Housing

    $12.39
    MSRP: $16.55
    Save 25%
  • SLIM-CLEAR-14-WPR5 Pentek Whole House Slim 5 inch Filter Housing
  • PENTEK-SLIM-PR10-JG38 Pentek Undersink Filter 10 inch Housing
  • 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
  • VIH-34-PR10 Pentek Whole House Valve-in-Head 10 inch Filter Housing
  • PGB25100L Tier1 Pressure Gauge

    PGB25100L Tier1 Pressure Gauge

    $15.99
    MSRP: $20.69
    Save 23%
  • BF7-S-05 OmniFilter Undersink Filter System

    BF7-S-05 OmniFilter Undersink Water Filtration System

    $69.99
    MSRP: $82.79
    Save 15%
  • OB1-S-05 OmniFilter Undersink Filter System
  • CL10PF5-B Omnipure Sediment Inline Filter

    CL10PF5-B Omnipure Sediment Inline Filter

    $14.29
    MSRP: $19.99
    Save 29%
  • CL6ROT33-B Omnipure Inline Filter

    CL6ROT33-B Omnipure Inline Filter

    $11.09
    MSRP: $16.99
    Save 35%
  • CL6ROT33-C Omnipure Inline Filter

    CL6ROT33-C Omnipure Inline Filter

    $8.89
    MSRP: $15.99
    Save 44%
  • 153098 Pentek Bag Filter Sump with 3/8-inch NPT Drain (bottom)
  • 154515 Pentek 1-inch PBH Bag Filter Housing Cap (Top)

    154515 Pentek 1-inch PBH Bag Filter Housing Cap (Top)

    $61.79
    MSRP: $73.36
    Save 16%
  • 158117 Pentek Slim Line Filter Housing - Clear

    158117 Pentek Slim Line Filter Housing - Clear

    $18.99
    MSRP: $24.14
    Save 21%
  • 158319 Pentek Slim Line High Temp Filter Housing - Black

    158319 Pentek Slim Line High Temp Filter Housing - Black

    $63.99
    MSRP: $66.34
    Save 4%
  • 158642 Pentek Slim Line Filter Housing - Blue

    158642 Pentek Slim Line Filter Housing - Blue

    $19.99
    MSRP: $25.29
    Save 21%
  • 158643 Pentek Slim Line Filter Housing with Pressure Relief Valve - Clear
  • 166227 Pentek Big White 3/4-inch #20 Housing Assembly
  • 3G-SLIM-38-NPT10 Pentek Whole House Slim 10 inch Filter Housing
  • 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
  • 3G-STANDARD-CLEAR-34-PR10 Pentek Whole House Standard 10 inch Filter Housing
  • BBFS-22 Pentek Two Housing Filter System

    BBFS-22 Pentek Two Housing Filter System

    $175.09
    MSRP: $203.65
    Save 14%
  • BBFS-222 Pentek Three Housing Filter System

    BBFS-222 Pentek Three Housing Filter System

    $224.99
    MSRP: $331.43
    Save 32%
  • BFS-201 Pentek Slim Line Filter Housing with Pressure Relief Valve
  • BIG-CLEAR-LX-10 Pentek Big Clear Whole House 10 inch Filter Housing
  • 158129 Pentek SlimLine Water Filter Housing (3/8 Inch)

    158129 Pentek SlimLine Water Filter Housing (3/8 Inch)

    $29.99
    MSRP: $36.79
    Save 18%
  • AFV Rusco Automatic Flush Valve

    AFV Rusco Automatic Flush Valve

    $399.99
    MSRP: $462.29
    Save 13%

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