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!

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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 193 to 240 of 340 total

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  • GAC1SS OmniFilter Series C Undersink Filter Replacement Cartridge
  • GXRTDR GE SmartWater Inline Filter Cartridge

    GXRTDR GE SmartWater Inline Filter Cartridge

    $20.99
    MSRP: $30.99
    Save 32%
  • ICF-10 Hydronix Inline Coconut Carbon Filter

    ICF-10 Hydronix Inline Coconut Carbon Filter

    $7.05
    MSRP: $9.19
    Save 23%
  • ICF-10Q Hydronix Inline Coconut Carbon Filter

    ICF-10Q Hydronix Inline Coconut Carbon Filter

    $7.79
    MSRP: $15.99
    Save 51%
  • ICF-10Q38 Hydronix Inline Coconut Carbon Filter

    ICF-10Q38 Hydronix Inline Coconut Carbon Filter

    $9.89
    MSRP: $13.99
    Save 29%
  • ICF-2512 Hydronix Inline Coconut Carbon Filter

    ICF-2512 Hydronix Inline Coconut Carbon Filter

    $26.49
    MSRP: $34.99
    Save 24%
  • ICF-6 Hydronix Inline Coconut Carbon Filter

    ICF-6 Hydronix Inline Coconut Carbon Filter

    $6.49
    MSRP: $13.99
    Save 54%
  • ICF-6Q Hydronix Inline Coconut Carbon Filter

    ICF-6Q Hydronix Inline Coconut Carbon Filter

    $6.99
    MSRP: $10.34
    Save 32%
  • HBSF-1FLT Hydros Fast-Flow Side-Fill Water Purifier Bottle Replacement Filter
  • HBSF-3FLT Hydros Fast-Flow Side-Fill Water Purifier Bottle Replacement Filter (3-Pack)
  • MATRIKX-1-HD10 KX Technologies MatrikX Whole House Filter Replacement Cartridge
  • GAC-10 Pentek Undersink Filter Replacement Cartridge

    GAC-10 Pentek Undersink Filter Replacement Cartridge

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

    GAC-20 Pentek Replacement Filter Cartridge

    $18.49
    MSRP: $29.99
    Save 38%
  • GAC-5 Pentek Replacement Filter Cartridge
  • GAC-BB Pentek Replacement Filter Cartridge

    GAC-BB Pentek Replacement Filter Cartridge

    $26.69
    MSRP: $36.99
    Save 28%
  • GS-10-B Pentek Inline Filter Replacement Cartridge

    GS-10-B Pentek Replacement Inline Water Filter Cartridge

    $11.09
    MSRP: $16.99
    Save 35%
  • GS-10-JG14 Pentek Inline Filter System

    GS-10-JG14 Pentek Inline Water Filtration System

    $12.99
    MSRP: $15.28
    Save 15%
  • GS-10ALS-JG14 Pentek Inline Filter System

    GS-10ALS-JG14 Pentek Inline Water Filter

    $14.69
    MSRP: $21.99
    Save 33%
  • GS-6RO-B Pentek Inline Filter Replacement Cartridge
  • IC-101L Pentek Inline Filter
  • QC10-GAC Pentek Undersink Quick-Change Filter System

    QC10-GAC Pentek Quick-Change Water Filter System

    $23.69
    MSRP: $42.99
    Save 45%
  • QC10-GACR Pentek Undersink Quick-Change Replacement Filter Cartridge
  • QC10-TSGAC Pentek Undersink Quick-Change Filter System

    QC10-TSGAC Pentek Quick-Change Water Filter Cartridge

    $26.39
    MSRP: $39.99
    Save 34%
  • QC10-TSGACR Pentek Undersink Quick-Change Replacement Filter Cartridge
  • RFC-BB Pentek Whole House Filter Replacement Cartridge - 1
  • TS-101L Pentek Lime/Scale Inline Filter

    TS-101L Pentek Lime/Scale Inline Filter

    $13.19
    MSRP: $20.99
    Save 37%
  • TSGAC-10 Pentek Undersink Filter Replacement Cartridge

    TSGAC-10 Pentek Undersink Filter Replacement Cartridge

    $20.99
    MSRP: $24.60
    Save 15%
  • UDS-10EX1 Pentek Whole House Filter Replacement Cartridge
  • R200 OmniFilter Inline Filter System

    R200 OmniFilter Inline Water Filtration System

    $14.99
    MSRP: $16.09
    Save 7%
  • 47-55706G2 Water Factory Systems Whole House Replacement Filter Cartridge
  • 47-55712G2 Water Factory Systems Replacement Filter Cartridge
  • 47-5574704 Water Factory Systems FaucetMATE Carbon Block Filter
  • WSRV-8 Water Sentinel Inline RV Water Filter

    WSRV-8 Water Sentinel Inline RV Water Filter

    $35.29
    MSRP: $45.99
    Save 23%
  • AICRO Watts Inline Polishing Filter

    AICRO Watts Inline Polishing Filter

    $7.99
    MSRP: $9.19
    Save 13%
  • AICRO-JGK Watts Inline Filter Cartridge
  • FPIR-BB-20 Watts Whole House Replacement Filter Cartridge
  • Whirlpool WHKF-GAC Undersink Replacement Water Filter Cartridge

    WHKF-GAC Whirlpool Undersink Replacement Filter Cartridge

    $10.99
    MSRP: $20.34
    Save 46%
  • IF14C Ice-O-Matic Inline Water Filtration Cartridge

    Ice-O-Matic IF14C Inline Water Filter Cartridge

    $100.59
    MSRP: $118.99
    Save 15%
  • IF18C Ice-O-Matic Inline Water Filtration Cartridge - 1

    IF18C Ice-O-Matic Inline Water Filter Cartridge

    $110.49
    MSRP: $152.99
    Save 28%
  • IOMQ Ice-O-Matic Replacement Ice Maker Pre-Filter Cartridge
  • F2-CHROME Instapure Essentials Faucet Filter System - Chrome
  • R2-1PK Instapure Essentials Faucet Filter Replacement Cartridge
  • R2-2PK Instapure Essentials Faucet Filter Replacement Cartridge (2-Pack)
  • R2-4PK Instapure Essentials Faucet Filter Replacement Cartridge (4-Pack)
  • 8013624 Katadyn Replacement Filter Element (2-Pack)

    8013624 Katadyn Replacement Filter Element (2-Pack)

    $14.95
    MSRP: $19.49
    Save 23%
  • 8013629 Katadyn Camping Filter System
  • 8015036 Katadyn Vario Backcountry Series Carbon Refill

    8015036 Katadyn Vario Backcountry Series Carbon Refill

    $9.95
    MSRP: $13.74
    Save 28%
  • 8011555 Katadyn Exstream Ultralight Series Personal Water Purifier Virustat Microbial Purification Cartridge

Items 193 to 240 of 340 total

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