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!
  • Our customer service team is guaranteed to answer your call!
  • You’re guaranteed to find expert help!

Learn more about our No Worries Guarantee

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 486 total

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  • C1-20 Pentek Comparable Whole House Carbon Water Filter by Tier1
  • SDC-45-1020 Hydronix Comparable Sediment Water Filter by Tier1
  • SDC-45-1010 Hydronix Comparable Sediment Water Filter by Tier1
  • FPMB-BB20-10 Watts Comparable Whole House Sediment Water Filter by Tier 1
  • WFFMC300X DuPont Faucet Mount Replacement Cartridge - Ultra Protection Filter
  • WFDWC20001 DuPont Universal Drinking Water Carbon Block Cartridge
  • Hydronix SDC-45-1020 Sediment Filter Cartridge
  • DGD-2501 Pentek Whole House Water Filter
  • DGD-7525 Pentek Whole House Sediment Filter
  • Pentek ECP20-20 Replacement Water Filter Cartridge

    ECP20-20 Pentek Replacement Filter Cartridge

    $14.99 MSRP: $15.28
    Save 2%
  • Pentek NCP-20 Whole House Water Filter Replacement Cartridge

    Pentek NCP-20 Whole House Water Filter Replacement Cartridge

    $14.99 MSRP: $20.57
    Save 27%
  • P5-20BB Tier1 Sediment Water Filter

    P5-20BB Tier1 Whole House Sediment Water Filter

    $14.99 MSRP: $25.76
    Save 42%
  • The Pentek C1 comparable Whole House Carbon Water Filter by Tier1

    Pentek C1 Comparable Carbon Block Water Filter by Tier1

    $14.99 MSRP: $16.92
    Save 11%
  • Pentek S1-BB Replacement Water Filter Cartridge

    Pentek S1-BB Water Filter Cartridge Replacement

    $14.99 MSRP: $17.99
    Save 17%
  • DGD-5005 Pentek Whole House Filter Cartridge
  • Hydronix HF2-10CLWH12 Clear 10 inch Filter Housing
  • CB1-10 Pentek Carbon Block Water Filter Replacement

    CB1-10 Pentek Carbon Block Water Filter Replacement

    $15.99
    MSRP: $23.99
    Save 33%
  • 602896 Viqua Pro Lamp Cord Retainer Wire Form

    602896 Viqua Pro Lamp Cord Retainer Wire Form

    $15.99
    MSRP: $18.34
    Save 13%
  • 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

    Pentek EPM-20 Whole House Water Filter Replacement Cartridge

    $15.99 MSRP: $19.34
    Save 17%
  • EP5-20 Tier1 Carbon Block Water Filter

    EP5-20 Tier1 Carbon Block Water Filter

    $15.99 MSRP: $20.69
    Save 23%
  • APS117 3M Aqua-Pure Comparable Whole House Carbon Water Filter by Tier1
  • D-20 Culligan Comparable Whole House Carbon Water Filter by Tier1
  • CFS117 Cuno Comparable Whole House Sediment Water Filter by Tier1
  • HDG-P117 Hydronix Comparable Whole House Sediment Water Filter by Tier1
  • WHKF-GAC AP117 Whirlpool Comparable Whole House Sediment Water Filter by Tier1
  • CBC-10 Pentek Replacement Water Filter
  • 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

    S1-20BB Pentek Comparable Whole House Water Filter by Tier1

    $16.99 MSRP: $26.99
    Save 37%
  • 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%
  • 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

    EPM-BB Pentek Comparable Whole House Water Filter by Tier1

    $17.99 MSRP: $30.99
    Save 42%
  • Pentek WP25BB97P Whole House Water Filter Replacement Cartridge

    WP25BB97P Pentek Whole House Filter Replacement Cartridge

    $17.99 MSRP: $19.31
    Save 7%
  • RS6-SS2-S06 OmniFilter Whole House Cartridge

    RS6-SS2-S06 OmniFilter Whole House Water Filter Cartridge

    $17.99 MSRP: $21.34
    Save 16%

Items 49 to 96 of 486 total

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