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!
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  • You’re guaranteed to find expert help!

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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.

24 Item(s)

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  • ROR2000-S-05 OmniFilter Reverse Osmosis Pre Filter Replacement
  • EP-BB Pentek Replacement Filter Cartridge

    EP-BB Pentek Replacement Filter Cartridge

    $27.99 MSRP: $32.32
    Save 13%
  • Pentek EPM-BB Replacement Water Filter Cartridge

    Pentek EPM-BB Water Filter Cartridge Replacement

    $26.99 MSRP: $34.49
    Save 22%
  • Pentek SCBC-10 Silvered Carbon Block

    Pentek SCBC-10 Silvered Carbon Block

    $22.99
    MSRP: $24.71
    Save 7%
  • Pentek QC10-CB1R Carbon Block Quick Change Filter
  • W20CLHD20 American Plumber Whole House 20-inch Heavy Duty Filter Cartridge
  • W30PEHD American Plumber Whole House Heavy Duty Filter Cartridge
  • W50PEHD American Plumber Whole House Heavy Duty Filter Cartridge
  • 3M Aqua-Pure AP117 Whole House Water Filter Cartridge

    3M Aqua-Pure AP117 Whole House Filter Replacement Cartridge

    $28.99
    MSRP: $54.13
    Save 46%
  • ISH-100 Culligan Level 2 Inline Shower Filter for 1/2 inch thread Shower Heads
  • FXHSC GE SmartWater Whole House Filter Replacement Cartridge
  • FLOPLUS-20 Pentek Replacement Filter Cartridge

    FLOPLUS-20 Pentek Replacement Filter Cartridge

    $28.99
    MSRP: $31.84
    Save 9%
  • GAC-BB Pentek Replacement Filter Cartridge

    GAC-BB Pentek Replacement Filter Cartridge

    $27.79
    MSRP: $36.99
    Save 25%
  • SL2-CM-M Sprite Slim Line Universal Shower Filter System - Chrome

    SL2-CM-M Sprite Slim Line Universal Shower Filter (Chrome)

    $26.05
    MSRP: $37.94
    Save 31%
  • MATRIKX-1-10 KX Technologies MatrikX Undersink Filter Replacement Cartridge
  • 3038333 Merlin Reverse Osmosis Carbon Pre Filter

    3038333 Merlin Reverse Osmosis Carbon Pre Filter

    $28.89
    MSRP: $35.99
    Save 20%
  • ELF-1M Omnipure Replacement Filter Cartridge

    ELF-1M Omnipure Replacement Filter Cartridge

    $22.99
    MSRP: $28.74
    Save 20%
  • CCBC-10 Pentek Undersink Filter Replacement Cartridge

    CCBC-10 Pentek Undersink Filter Replacement Cartridge

    $20.29
    MSRP: $27.99
    Save 28%
  • SL-CM Sprite Slim Line Universal Shower Filter System - Chrome
  • ELF-XL-10M-P Omnipure Water Filter

    ELF-XL-10M-P Omnipure Water Filter

    $23.05
    MSRP: $45.99
    Save 50%
  • AW1-CM Sprite Ultimate Shower Filtered Shower Head (Chrome)

    AW1-CM Sprite Ultimate Shower Filtered Shower Head (Chrome)

    $28.99
    MSRP: $36.79
    Save 21%

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