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  • Our products are price match guaranteed!
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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 49 to 96 of 472 total

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  • 158098 Pentek Slim Line Water Filter Housing System

    158098 Pentek Slim Line Water Filter Housing System

    $15.99
    MSRP: $19.99
    Save 20%
  • Hydronix SPC-45-1005 Whole House Sediment Filter Cartridge
  • Pentek ECP1-BB Replacement Water Filter Cartridge

    Pentek ECP1-BB Water Filter Cartridge Replacement

    $15.99 MSRP: $17.12
    Save 7%
  • Pentek ECP20-BB Replacement Water Filter Cartridge

    ECP20-BB Pentek Replacement Filter Cartridge

    $15.99 MSRP: $17.70
    Save 10%
  • EPM-20 Pentek Whole House Water Filter
  • EP5-20 Tier1 Carbon Block Water Filter

    EP5-20 Tier1 Carbon Block Water Filter

    $15.99 MSRP: $20.69
    Save 23%
  • W50PEHD American Plumber Comparable Whole House Water Filter by Tier1
  • Hydronix HF2-10CLWH14 Clear 10 inch Filter Housing

    Hydronix HF2-10CLWH14 Clear 10 inch Filter Housing

    $16.99
    MSRP: $17.24
    Save 1%
  • CMB-510-HF Advanced Water Products 10-inch x 4.5-inch Replacement Sediment Filter
  • 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%
  • CMB-510-HF Viqua Sediment Whole House Filter

    CMB-510-HF Viqua Sediment Whole House Filter

    $16.99
    MSRP: $19.34
    Save 12%
  • 158203 Pentek Slim Line Black/Blue w/PR Water Filter System
  • SDC-45-1050 Hydronix Pleated Water Filter

    SPC-45-1050 Hydronix Polypropylene Spun Water Filter

    $16.99 MSRP: $20.69
    Save 18%
  • Pentek C1-20 Carbon Water Filter Replacement Cartridge

    Pentek C1-20 Water Filter Cartridge Replacements

    $16.99 MSRP: $20.00
    Save 15%
  • ECP5-BB Pentek Comparable Whole House Sediment Water Filter by Tier1
  • S1-20BB Pentek Comparable Whole House Water Filter by Tier1
  • WFHDC3001 DuPont Universal Heavy Duty Pleated Poly Whole House Cartridge
  • RN-001 Viqua Retaining Nut

    RN-001 Viqua Retaining Nut

    $17.99
    MSRP: $20.34
    Save 12%
  • WB-0001 WaterBrick Ventless Spigot Assembly

    WB-0001 WaterBrick Ventless Spigot Assembly

    $17.99
    MSRP: $22.99
    Save 22%
  • FiftyFifty V18001SS0 Water Bottle (18 oz)

    FiftyFifty V18001SS0 Water Bottle (18 oz)

    $17.99
    MSRP: $25.99
    Save 31%
  • P5-10 Tier1 Sediment Water Filter (4-pack)
  • Pentek EP-20 Replacement Water Filter Cartridge

    Pentek EP-20 Water Filter Cartridge Replacements

    $17.99 MSRP: $20.00
    Save 10%
  • EPM-BB Pentek Comparable Carbon Whole House Water Filter
  • Pentek WP25BB97P Whole House Water Filter Replacement Cartridge
  • RS6-SS2-S06 OmniFilter Whole House Cartridge
  • Tier1 P20-20BB Whole House Replacement Sediment Filter Cartridge
  • 22110 Hydrologic SmallBoy Replacement Carbon Filter - Green
  • WHKF-DWHB Whirlpool Comparable Whole House Sediment Water Filter by Tier1
  • 602636 Viqua Replacement Power Cord

    602636 Viqua Replacement Power Cord

    $18.99
    MSRP: $21.34
    Save 11%
  • 603000 Viqua Safety Cap

    603000 Viqua Safety Cap

    $18.99
    MSRP: $21.34
    Save 11%
  • AF-10-1053 Aries Specialty Cartridge Hydrogen Sulfide Removal
  • PH-2011R Tier1 Pen Type pH Meter

    PH-2011R Tier1 Pen Type pH Meter

    $18.99
    MSRP: $26.99
    Save 30%
  • Pentek WP5BB97P Replacement Water Filter Cartridge
  • Pentek WPX25BB97P Whole House Water Filter Replacement Cartridge
  • SDC-45-2010 Hydronix Comparable Sediment Water Filter by Tier1
  • K5520SS Omnipure Inline GAC Filter Cartridge

    K5520SS Omnipure Inline GAC Water Filter Cartridge

    $19.05
    MSRP: $27.59
    Save 31%
  • SDC-45-2050 Hydronix Comparable Sediment Water Filter by Tier1
  • R30-20BB Pentek Comparable Whole House Sediment Water Filter by Tier1
  • Hydronix SDC-45-2005 Whole House Sediment Filter Cartridge
  • SPC-45-2050 Hydronix Pleated Sediment Water Filter
  • Pentek CHLORPLUS-10 Whole House Water Filter Replacement Cartridge
  • Pentek WS-10 Water Softening Water Filter

    Pentek WS-10 Water Softening Filter

    $19.99 MSRP: $24.83
    Save 19%
  • Hydronix SDC-25-3075 Polypropylene Sediment Filter

    Hydronix SDC-25-3075 Polypropylene Sediment Filter

    $10.99
    MSRP: $11.37
    Save 3%
  • Hytrex GX30-20 Polypropylene Sediment Filter

    Hytrex GX30-20 Polypropylene Sediment Filter

    $10.99
    MSRP: $13.34
    Save 18%
  • Pentek BN-420-100 Nylon Filter Bag

    Pentek BN-420-100 Nylon Filter Bag

    $10.99
    MSRP: $13.67
    Save 20%
  • Pentek BN-420-400 Nylon Filter Bag

    Pentek BN-420-400 Nylon Filter Bag

    $10.99
    MSRP: $13.79
    Save 20%
  • ws03x10012 GE SmartWater Reverse Osmosis Filter O-Ring

    ws03x10012 GE SmartWater Reverse Osmosis Filter O-Ring

    $11.99
    MSRP: $13.79
    Save 13%
  • Hydronix SDC-25-3001 Polypropylene Sediment Filter

Items 49 to 96 of 472 total

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