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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 1 to 48 of 142 total

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  • CW-MF Pentek Whole House Filter Replacement Cartridge (6-Pack)
  • P-12 Under Sink Water Replacement Filter Cartridge by Tier1
  • EPM-20BB Pentek Comparable Whole House Water Filter by Tier1
  • 35430 Brita Grand Pitcher Orange

    35430 Brita Grand Pitcher Orange

    $41.99
    MSRP: $45.99
    Save 9%
  • Pentair NEPP2-40DB Pureflex Pleated Polypropylene Cartridge
  • 200362 Axeon TF-1812-150 Residential Reverse Osmosis Membrane
  • EPM-20BB Pentek Whole House Filter Cartridge

    EPM-20BB Pentek Whole House Filter Replacement Cartridge

    $43.99 MSRP: $55.65
    Save 21%
  • BW60-1812-75 Filmtec Reverse Osmosis Membrane

    BW60-1812-75 Filmtec Reverse Osmosis Membrane

    $44.99
    MSRP: $47.34
    Save 5%
  • DuPont WFFS150XCH Chrome Counter Top Faucet System
  • GAC20-BB Pentek Whole House Water Filter

    GAC20-BB Pentek Whole House Filter Replacement Cartridge

    $44.99 MSRP: $66.31
    Save 32%
  • EP-20BB Pentek Replacement Water Filter

    EP-20BB Pentek Replacement Filter Cartridge

    $47.99 MSRP: $62.83
    Save 24%
  • 602733 Viqua Quartz Sleeve for 602806 UV Lamp

    602733 Viqua Quartz Sleeve for 602806 UV Lamp

    $48.99
    MSRP: $64.00
    Save 23%
  • Pentair NEPP12-40DB Pureflex Pleated Polypropylene Cartridge
  • Katadyn 8018342 MyBottle Microfilter Red Splash

    Katadyn 8018342 MyBottle Microfilter Red Splash

    $40.99
    MSRP: $59.79
    Save 31%
  • 10-212 Pentek UV Lamp

    10-212 Pentek UV Lamp

    $47.99
    MSRP: $67.38
    Save 29%
  • Omnipure ELF-10M-P Carbon Block with Polyphosphate

    Omnipure ELF-10M-P Carbon Block with Polyphosphate

    $47.99
    MSRP: $50.34
    Save 5%
  • 67300 Aquamira Home Emergency Drinking Water Kit
  • APHOSF-RC 3M Aqua-Pure High-Output Shower Filter Cartridge
  • FXHTC GE SmartWater Whole House Filter Replacement Cartridge
  • VIH-34-PR10 Pentek Whole House Valve-in-Head 10 inch Filter Housing
  • 47-55711G2 Water Factory Systems Whole House Replacement Filter Cartridge
  • MATRIKX-5-HD10 KX Technologies MatrikX Whole House Filter Replacement Cartridge
  • 3M Aqua-Pure AP110-3C Whole House Water Filter

    AP110-3C 3M Aqua-Pure Water Filter Cartridge

    $40.99
    MSRP: $49.44
    Save 17%
  • 9602 Moen Replacement Filter Cartridge for ChoiceFlo Faucet Systems
  • RS-502-MS Rainshowr Shower Filter System with Massage - White
  • HFPP-112-PR10 Pentek Big Blue Whole House 10 inch Filter Housing
  • 3M Aqua-Pure APLPSF-PC Low Profile Shower Filter - Chrome
  • 42632 Brita Chrome SMART OB39 64-Ounce Water Pitcher
  • CTA-16 Desal Reverse Osmosis Membrane

    CTA-16 Desal Reverse Osmosis Membrane

    $41.99
    MSRP: $50.59
    Save 17%
  • EV9601-00 Everpure 4C Replacement Filter Cartridge

    EV9601-00 Everpure 4C Replacement Filter Cartridge

    $41.99
    MSRP: $45.99
    Save 9%
  • TW30-1812-36 Filmtec Reverse Osmosis Membrane

    TW30-1812-36 Filmtec Reverse Osmosis Membrane

    $41.99
    MSRP: $48.29
    Save 13%
  • 3US-AS01 Filtrete Undersink Filter System

    3US-AS01 Filtrete Undersink Filter System

    $41.99
    MSRP: $50.59
    Save 17%
  • GXULQR GE Undersink Water Filter Replacement Cartridge
  • HFPP-34-PR-10 Pentek Big Blue Whole House 10 inch Filter Housing
  • PCC-1 Pentek Undersink Filter Replacement Cartridge

    PCC-1 Pentek Undersink Filter Replacement Cartridge

    $41.99
    MSRP: $53.23
    Save 21%
  • QMP602 QMP Countertop Water Filter System

    QMP602 QMP Countertop Filter System

    $41.99
    MSRP: $45.99
    Save 9%
  • 01007402 Culligan Reverse Osmosis Membrane
  • AE7-CM Sprite Shower Pure 7 Filtered Shower Head (Chrome)
  • GXSM01HWW GE Shower Filter System

    GXSM01HWW GE Shower Filter System

    $42.99
    MSRP: $45.34
    Save 5%
  • PCF1-20MB Pentek Whole House Filter Replacement Cartridge
  • HR5-WH Sprite Royale Handheld Shower Filter System - White
  • CBC-BB Pentek Whole House Filter Replacement Cartridge
  • CFB-PLUS20BB Pentek Replacement Water Filter Cartridge

    CFB-PLUS20BB Pentek Replacement Water Filter Cartridge

    $42.99
    MSRP: $52.89
    Save 19%
  • ACT-8-CM Sprite Cascading Traditional Shower 8-Setting Filtered Shower Head (Chrome)
  • SS-IMF Everpure Replacement Filter Cartridge

    SS-IMF Everpure Replacement Filter Cartridge

    $43.05
    MSRP: $66.69
    Save 35%

Items 1 to 48 of 142 total

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