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

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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 54 total

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  • P5-10BB Tier1 Sediment Water Filter

    P5-10BB Tier1 Sediment Water Filter

    $11.99 MSRP: $24.64
    Save 51%
  • D-15 Culligan Whole Comparable House Carbon Water Filter by Tier1
  • SPC-45-1001 Hydronix Comparable Whole House Sediment Water Filter by Tier1
  • F2-WHITE Instapure Essentials Faucet Filter System - White

    F2-WHITE Instapure Essentials Faucet Filter System - White

    $13.89
    MSRP: $21.99
    Save 37%
  • SWC-25-2030 Hydronix String Wound Sediment Water Filter (30 micron)
  • DuPont WFPTC050X Water Pitcher Replacement Cartridge
  • SPC-25-2020 Hydronix Pleated Sediment Water Filter

    SPC-25-2020 Hydronix Pleated Sediment Water Filter

    $14.99
    MSRP: $20.99
    Save 29%
  • SPC-25-2005 Hydronix Pleated Sediment Water Filter

    SPC-25-2005 Hydronix Pleated Sediment Water Filter

    $14.99
    MSRP: $20.99
    Save 29%
  • WFFMC300X DuPont Faucet Mount Replacement Cartridge - Ultra Protection Filter
  • P5-20BB Tier1 Sediment Water Filter

    P5-20BB Tier1 Whole House Sediment Water Filter

    $14.99 MSRP: $25.76
    Save 42%
  • Hydronix HF2-10CLWH12 Clear 10 inch Filter Housing
  • EP5-20 Tier1 Carbon Block Water Filter

    EP5-20 Tier1 Carbon Block Water Filter

    $15.99 MSRP: $20.69
    Save 23%
  • SPC-25-2030 Hydronix Pleated Sediment Water Filter

    SPC-25-2030 Hydronix Pleated Sediment Water Filter

    $16.99
    MSRP: $23.99
    Save 29%
  • SDC-45-1050 Hydronix Pleated Water Filter

    SPC-45-1050 Hydronix Polypropylene Spun Water Filter

    $16.99 MSRP: $20.69
    Save 18%
  • 22010 Hydrologic Comparable Whole House Water Filter by Tier1
  • SWC-45-1001 Hydronix String-Wound Sediment Water Filter

    SWC-45-1001 Hydronix String-Wound Sediment Water Filter

    $17.99
    MSRP: $18.39
    Save 2%
  • Hydronix SPC-45-1030 Sediment Water Filter - Pleated

    SPC-45-1030 Hydronix Pleated Sediment Water Filter

    $17.99 MSRP: $19.54
    Save 8%
  • EPM-BB Pentek Comparable Carbon Whole House Water Filter

    EPM-BB Pentek Comparable Whole House Water Filter by Tier1

    $17.99 MSRP: $30.99
    Save 42%
  • EPM-BB Pentek Comparable Whole House Water Filter by Tier1

    EPM-BB Pentek Comparable Whole House Water Filter by Tier1

    $17.99 MSRP: $30.99
    Save 42%
  • SPC-25-2001 Hydronix Pleated Sediment Water Filter

    SPC-25-2001 Hydronix Pleated Sediment Water Filter

    $18.99
    MSRP: $25.99
    Save 27%
  • CW-MF Pentek Comparable Whole House Sediment Water Filter by Tier1 (4-Pack)
  • Hydronix SPC-45-1020 Pleated Sediment Water Filter
  • K2386-JJ Omnipure Inline Phosphate Water Filter

    K2386-JJ Omnipure Inline Phosphate Water Filter

    $10.05
    MSRP: $17.24
    Save 42%
  • 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%
  • SPC-25-2010 Hydronix Pleated Sediment Water Filter

    SPC-25-2010 Hydronix Pleated Sediment Water Filter

    $10.99
    MSRP: $12.64
    Save 13%
  • FS-1-100 Rusco Spin-Down Replacement Water Filter

    FS-1-100 Rusco Spin-Down Replacement Water Filter

    $11.99
    MSRP: $21.84
    Save 45%
  • FS-1-140 Rusco Spin-Down Replacement Water Filter

    FS-1-140 Rusco Spin-Down Replacement Water Filter

    $11.99
    MSRP: $18.39
    Save 35%
  • FS-1-60 Rusco Spin-Down Polyester Replacement Water Filter

    FS-1-60 Rusco Spin-Down Polyester Replacement Water Filter

    $11.99
    MSRP: $19.54
    Save 39%
  • WQCSC11 Watts Kwik-Change Sediment Filter Cartridge

    WQCSC11 Watts Kwik-Change Sediment Filter Cartridge

    $11.99
    MSRP: $16.09
    Save 25%
  • FS-1-30 Rusco Spin-Down Polyester Replacement Filter

    FS-1-30 Rusco Spin-Down Polyester Replacement Filter

    $11.99
    MSRP: $31.04
    Save 61%
  • PX05-40 Purtrex Whole House Replacement Sediment Filter Cartridge
  • FM-25R Culligan Replacement Faucet Filter

    FM-25R Culligan Replacement Faucet Filter

    $13.89
    MSRP: $21.99
    Save 37%
  • Dupont WFSSC0501 Shower Water Filter Replacement Cartridge

    Dupont WFSSC0501 Shower Water Filter Replacement Cartridge

    $13.89
    MSRP: $19.99
    Save 31%
  • FS-1-500 Rusco Spin-Down Replacement Water Filter

    FS-1-500 Rusco Spin-Down Replacement Water Filter

    $13.99
    MSRP: $20.69
    Save 32%
  • FS-1-250 Rusco Spin-Down Replacement Water Filter

    FS-1-250 Rusco Spin-Down Replacement Water Filter

    $13.99
    MSRP: $20.69
    Save 32%
  • Pentek 255579-43 Inline Sediment Water Filter Replacement

    Pentek 255579-43 Inline Sediment Water Filter Replacement

    $14.29
    MSRP: $21.99
    Save 35%
  • GXRTQR GE Smart Water In-Line Comparable Replacement Cartridge by Tier1
  • FS-1-100ST Rusco Sediment Trapper Replacement Filter

    FS-1-100ST Rusco Sediment Trapper Replacement Filter

    $14.99
    MSRP: $21.84
    Save 31%
  • SWC-45-1005 Hydronix String Wound Sediment Water Filter

    SWC-45-1005 Hydronix String Wound Sediment Water Filter

    $15.99
    MSRP: $19.54
    Save 18%
  • HB-20-20W Harmsco Comparable Whole House Sediment Water Filter by Tier1
  • Q5648 Omnipure Calcite Water Filter

    Q5648 Omnipure Calcite Water Filter

    $17.89
    MSRP: $24.99
    Save 28%
  • FS-1-60SS Rusco Spin-Down Stainless Steel Replacement Water Filter
  • WQCCC11 Watts Kwik-Change Pre-Carbon Water Filter Cartridge

    WQCCC11 Watts Kwik-Change Pre-Carbon Water Filter Cartridge

    $17.99
    MSRP: $25.29
    Save 29%
  • 41400076 Hydrotech Dual Purpose Water Filter41400076 Hydrotech Dual Purpose Water Filter

    41400076 Hydrotech Dual Purpose Water Filter

    $17.99
    MSRP: $19.54
    Save 8%
  • DuPont WFPT075X Vista Filtered Water Pitcher
  • F5-WHITE Instapure Complete Faucet Filter System - White

    F5-WHITE Instapure Complete Faucet Filter System - White

    $18.19
    MSRP: $28.99
    Save 37%
  • K2586-JJ GAC Omnipure Phosphate Inline Water Filter

    K2586-JJ GAC Omnipure Phosphate Inline Water Filter

    $18.69
    MSRP: $24.99
    Save 25%

Items 1 to 48 of 54 total

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