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

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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.

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44 Item(s)

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  • 3M Aqua-Pure AP110-2C Whole House Water Filter Cartridge
  • HYDRONIX-CB-25-2010

    HYDRONIX-CB-25-2010

    $15.69
  • PENTEK-GAC-20

    PENTEK-GAC-20

    $18.49
    MSRP: $23.56
    Save 22%
  • PX20-20 Purtrex Replacement Filter Cartridge

    PX20-20 Purtrex Replacement Water Filter

    $10.99
    MSRP: $14.99
    Save 27%
  • PX75-20 Purtrex Replacement Filter Cartridge

    PX75-20 Purtrex Replacement Water Filter Cartridge

    $10.99
    MSRP: $14.99
    Save 27%
  • PENTEK-ECP1-20

    PENTEK-ECP1-20

    $15.99
    MSRP: $17.70
    Save 10%
  • PENTEK-ECP50-20

    PENTEK-ECP50-20

    $14.99
    MSRP: $17.70
    Save 15%
  • HYDRONIX-SPC-25-2020

    HYDRONIX-SPC-25-2020

    $14.99
    MSRP: $20.99
    Save 29%
  • HYDRONIX-SPC-25-2005

    HYDRONIX-SPC-25-2005

    $14.99
    MSRP: $20.99
    Save 29%
  • HYDRONIX-SPC-25-2001

    HYDRONIX-SPC-25-2001

    $18.99
    MSRP: $25.99
    Save 27%
  • HYDRONIX-SPC-25-2010

    HYDRONIX-SPC-25-2010

    $10.99
    MSRP: $12.64
    Save 13%
  • HYDRONIX-SPC-25-2030

    HYDRONIX-SPC-25-2030

    $16.99
    MSRP: $23.99
    Save 29%
  • SWC-25-2001 Hydronix String Wound Sediment Water Filter (1 micron)
  • HYDRONIX-SWC-25-2030

    HYDRONIX-SWC-25-2030

    $13.99
    MSRP: $17.24
    Save 19%
  • GAC-20 Pentek Comparable Granular Activated Carbon Water Filter by Tier1
  • AP-GRMB-01PP-20UB Whole House Replacement Water Filter by 3M Aqua-Pure
  • Pentek ECP5-20 Replacement Water Filter Cartridge
  • Pentek PD-10-20 Whole House Replacement Sediment Water Filter
  • Pentek PD-25-20 Whole House Replacement Sediment Water Filter
  • S1-20 Pentek Whole House Filter Replacement Cartridge

    S1-20 Pentek Whole House Filter Replacement Cartridge

    $12.99 MSRP: $17.99
    Save 28%
  • PENTEK-CFB-PLUS20

    PENTEK-CFB-PLUS20

    $17.89
    MSRP: $21.26
    Save 16%
  • Pentek PX03-20 Polypropylene Sediment Filter

    Purtrex PX03-20 Polypropylene Sediment Filter

    $19.99
    MSRP: $22.34
    Save 11%
  • TIER1-C5-20

    TIER1-C5-20

  • TIER1-EPM10-20

    TIER1-EPM10-20

    $11.99
  • AP-GRMB-05PP-20UB Whole House Replacement Filter by 3M Aqua-Pure
  • AP-GRMB-10PP-20UB Whole House Replacement Cartridge by 3M Aqua-Pure
  • AP-GRMB-20PP-20UB Whole House Water Filter Replacement Cartridge
  • AP-GRMB-50PP-20UB Whole House Water Filter Replacement Cartridge
  • Pentek ECP20-20 Replacement Water Filter Cartridge

    ECP20-20 Pentek Replacement Filter Cartridge

    $14.99 MSRP: $19.99
    Save 25%
  • Pentek EP-20 Replacement Water Filter Cartridge

    Pentek EP-20 Water Filter Cartridge Replacements

    $19.59 MSRP: $20.00
    Save 2%
  • EPM-20 Pentek Whole House Water Filter

    Pentek EPM-20 Whole House Water Filter Replacement Cartridge

    $12.39 MSRP: $16.55
    Save 25%
  • Pentek NCP-20 Whole House Water Filter Replacement Cartridge

    Pentek NCP-20 Whole House Water Filter Replacement Cartridge

    $15.89 MSRP: $20.57
    Save 23%
  • Pentek P1-20 Whole House Water Filter Replacement Cartridge
  • C1-20 Pentek Comparable Whole House Carbon Water Filter by Tier1
  • Pentek R30-20 Replacement Water Filter Cartridge

    R30-20 Pentek Replacement Filter Cartridge

    $17.99 MSRP: $24.99
    Save 28%
  • EP-20 Pentek Comparable Replacement Filter Cartridge by Tier1
  • Pentek C1-20 Carbon Water Filter Replacement Cartridge

    Pentek C1-20 Water Filter Cartridge Replacements

    $13.69 MSRP: $16.09
    Save 15%
  • SPC-25-2001 Hydronix Comparable Pleated Sediment Water Filter by Tier1
  • SWC-25-2005 Hydronix Comparable String Wound Sediment Water Filter (5 micron) by Tier1
  • GAC-20 Pentek Comparable Granular Activated Carbon Water Filter by Tier1
  • SPC-25-2001 Hydronix Comparable Pleated Sediment Water Filter by Tier1
  • SWC-25-2005 Hydronix Comparable String Wound Sediment Water Filter (5 micron) by Tier1
  • SWC-25-2010 Hydronix Comparable String Wound Sediment Water Filter (5 micron) by Tier1
  • CB-25-2010 Hydronix Comparable Replacement Filter Cartridge by Tier1

44 Item(s)

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