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

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  • 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.

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Items 1 to 48 of 61 total

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  • K2528-KK Omnipure GAC Inline Water Filter

    K2528-KK Omnipure GAC Inline Water Filter

    $11.99
    MSRP: $17.99
    Save 33%
  • Pentek EP-10 Replacement Water Filter Cartridge

    Pentek EP-10 Filter Cartridge Replacement

    $11.99 MSRP: $15.34
    Save 22%
  • F2-WHITE Instapure Essentials Faucet Filter System - White

    F2-WHITE Instapure Essentials Faucet Filter System - White

    $13.89
    MSRP: $21.99
    Save 37%
  • WFPFC3002 DuPont Universal Whole House Pleated Poly Filter Cartridge (2-Pack)
  • HAC-10-W Harmsco Activated Carbon Water Filter Cartridge

    HAC-10-W Harmsco Activated Carbon Water Filter Cartridge

    $13.99
    MSRP: $19.99
    Save 30%
  • K2586-KK Omnipure Inline Water Filter

    K2586-KK Omnipure Inline Water Filter

    $14.29
    MSRP: $20.99
    Save 32%
  • WFFMC300X DuPont Faucet Mount Replacement Cartridge - Ultra Protection Filter
  • WFDWC20001 DuPont Universal Drinking Water Carbon Block Cartridge
  • Hydronix SDC-45-1020 Sediment Filter Cartridge
  • Hydronix HF2-10CLWH12 Clear 10 inch Filter Housing
  • WFHDC3001 DuPont Universal Heavy Duty Pleated Poly Whole House Cartridge
  • Pentek EP-20 Replacement Water Filter Cartridge

    Pentek EP-20 Water Filter Cartridge Replacements

    $17.99 MSRP: $20.00
    Save 10%
  • 22110 Hydrologic SmallBoy Replacement Carbon Filter - Green
  • Hydronix SDC-25-3075 Polypropylene Sediment Filter

    Hydronix SDC-25-3075 Polypropylene Sediment Filter

    $10.99
    MSRP: $11.37
    Save 3%
  • Hydronix SDC-25-3001 Polypropylene Sediment Filter
  • Hydronix SDC-25-4005 Polypropylene Sediment Filter

    Hydronix SDC-25-4005 Polypropylene Sediment Filter

    $11.99
    MSRP: $13.56
    Save 12%
  • PURTREX PX05-29-14 Sediment Filter

    PURTREX PX05-29-14 Sediment Filter

    $11.99
    MSRP: $14.34
    Save 16%
  • Hydronix SDC-25-4010 Polypropylene Sediment Filter

    Hydronix SDC-25-4010 Polypropylene Sediment Filter

    $12.99
    MSRP: $14.34
    Save 9%
  • Hydronix SDC-25-4025 Polypropylene Sediment Filter

    Hydronix SDC-25-4025 Polypropylene Sediment Filter

    $12.99
    MSRP: $14.34
    Save 9%
  • Hydronix SDC-25-4050 Polypropylene Sediment Filter

    Hydronix SDC-25-4050 Polypropylene Sediment Filter

    $12.99
    MSRP: $14.34
    Save 9%
  • Hydronix SDC-25-4075 Polypropylene Sediment Filter

    Hydronix SDC-25-4075 Polypropylene Sediment Filter

    $12.99
    MSRP: $14.34
    Save 9%
  • Hydronix GX50-30 Polypropylene Sediment Filter

    Hydronix GX50-30 Polypropylene Sediment Filter

    $12.99
    MSRP: $14.36
    Save 10%
  • Pentek 158114 10-inch Standard Filter Housing

    Pentek 158114 10-inch Standard Filter Housing

    $12.99
    MSRP: $15.34
    Save 15%
  • Pentek CFB-PB10 Lead & Cyst Carbon Filter

    Pentek CFB-PB10 Lead & Cyst Carbon Filter

    $13.99
    MSRP: $17.12
    Save 18%
  • Purtrex PX05-30 Polypropylene Sediment Filter

    Purtrex PX05-30 Polypropylene Sediment Filter

    $13.99
    MSRP: $16.34
    Save 14%
  • Hytrex GX05-29-14 Polypropylene Sediment Filter

    Hytrex GX05-29-14 Polypropylene Sediment Filter

    $14.99
    MSRP: $17.34
    Save 14%
  • Pentek PD-1-30 Polypropylene Sediment Filter
  • Hytrex GX05-30 Polypropylene Sediment Filter

    Hytrex GX05-30 Polypropylene Sediment Filter

    $18.99
    MSRP: $21.34
    Save 11%
  • Pentek PX03-20 Polypropylene Sediment Filter

    Purtrex PX03-20 Polypropylene Sediment Filter

    $19.99
    MSRP: $22.34
    Save 11%
  • Pentek 158623 Clear 3G Filter Housing

    Pentek 158623 Clear 3G Filter Housing

    $19.99
    MSRP: $21.26
    Save 6%
  • K2386-JJ Omnipure Inline Phosphate Water Filter

    K2386-JJ Omnipure Inline Phosphate Water Filter

    $10.05
    MSRP: $17.24
    Save 42%
  • R2-1PK Instapure Essentials Faucet Filter Replacement Cartridge
  • SPC-45-1010 Hydronix Pleated Sediment Water Filter

    SPC-45-1010 Hydronix Pleated Sediment Water Filter

    $10.99
    MSRP: $18.39
    Save 40%
  • CL10ROT33-A Omnipure GAC Inline Water Filter

    CL10ROT33-A Omnipure GAC Inline Water Filter

    $10.99
    MSRP: $14.94
    Save 26%
  • Q5328 Omnipure Water Filter

    Q5328 Omnipure Water Filter

    $10.99
    MSRP: $14.94
    Save 26%
  • CL6ROT33-B Omnipure Inline Filter

    CL6ROT33-B Omnipure Inline Filter

    $11.09
    MSRP: $16.99
    Save 35%
  • R2-2PK Instapure Essentials Faucet Filter Replacement Cartridge (2-Pack)
  • GX01-30 Hytrex Replacement Filter Cartridge

    GX01-30 Hytrex Water Filter Cartridge

    $11.99
    MSRP: $16.09
    Save 25%
  • CL10ROT33-B Omnipure Inline Filter

    CL10ROT33-B Omnipure Inline Filter

    $12.19
    MSRP: $16.99
    Save 28%
  • GX10-30 Hytrex Replacement Filter Cartridge

    GX10-30 Hytrex Water Filter Cartridge

    $12.59
    MSRP: $19.99
    Save 37%
  • SDC-25-4001 Hydronix Sediment Water Filter Cartridge

    SDC-25-4001 Hydronix Sediment Water Filter Cartridge

    $12.99
    MSRP: $16.09
    Save 19%
  • Purtrex PX01-40 Polypropylene Sediment Filter

    Purtrex PX01-40 Polypropylene Sediment Filter

    $12.99
    MSRP: $17.24
    Save 25%
  • K5528-BB Omnipure Carbon Inline Water Filter

    K5528-BB Omnipure Carbon Inline Water Filter

    $13.19
    MSRP: $20.99
    Save 37%
  • FM-25R Culligan Replacement Faucet Filter

    FM-25R Culligan Replacement Faucet Filter

    $13.89
    MSRP: $21.99
    Save 37%
  • SDC-45-1001 Hydronix Whole House Replacement Sediment Filter Cartridge
  • FM-15RA Culligan Level 3 Faucet Filter Replacement Cartridge
  • 30034 New Wave Enviro Barrier Ultra Cartridge Bacterial Removal
  • D-20A Culligan Level 1 Undersink Water Filter Replacement Cartridge

Items 1 to 48 of 61 total

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