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  • Your filters are guaranteed to be the right fit!
  • 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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  • Desal TFM-18-C Reverse Osmosis Membrane

    Desal TFM-18-C Reverse Osmosis Membrane

    $30.99 Retail Price:  $38.99
  • P5-20BB Tier1 Whole House Sediment Water Filter (2-Pack)
  • EP5-20BB Tier1 Carbon Block Water Filter

    EP5-20BB Tier1 Carbon Block Water Filter

    As Low As $30.00 Per Filter

  • D-250A Culligan Undersink Filter Replacement Cartridge Set
  • ISH-200 Culligan Inline Shower Filter - Chrome

    ISH-200 Culligan Inline Shower Filter - Chrome

    $30.99 Retail Price:  $32.19
  • IC-EZ-3 Culligan Level 3 Easy-Change Inline Filter System
  • RDA-150 Culligan Shower Exstension Arm

    RDA-150 Culligan Shower Exstension Arm

    $31.99 Retail Price:  $38.51
  • WPX100BB20P Pentek Replacement Filter Cartridge

    WPX100BB20P Pentek Replacement Filter Cartridge

    $32.99 Retail Price:  $33.11
  • FU-WDF-103-B Tier1 Long-Reach Black Faucet FCT-LR-B - Black
  • LF-BLRAG-BN Tier1 Low Lead Air Gap Faucet - Brushed Nickel
  • D-40 Culligan Level 4 Undersink Water Filter Replacement Cartridge
  • RVF-10 Culligan RV Pre-Tank Exterior Filter

    RVF-10 Culligan RV Pre-Tank Exterior Filter

    $34.99 Retail Price:  $38.51
  • WSH-C125 Culligan Filtered Shower Head with Massage Feature
  • WP5BB20P Pentek Replacement Filter Cartridge

    WP5BB20P Pentek Replacement Filter Cartridge

    $34.99 Retail Price:  $42.54
  • WRC25HD American Plumber Whole House Heavy Duty Filter Cartridge
  • HF-360 Culligan Valve-In-Head Whole House Filter System

    HF-360 Culligan Valve-In-Head Whole House Filter System

    $35.99 Retail Price:  $47.14
  • US-600 Culligan Slim Undersink Filter System

    US-600 Culligan Slim Undersink Filter System

    $35.99 Retail Price:  $41.39
  • US-EZ-1 Culligan Level 1 Easy-Change Undersink Filter System
  • TFM-18-A Tier1 Reverse Osmosis Membrane

    TFM-18-A Tier1 Reverse Osmosis Membrane

    $35.99 Retail Price:  $45.99
  • TFM-36-A Tier1 Reverse Osmosis Membrane

    TFM-36-A Tier1 Reverse Osmosis Membrane

    $36.99 Retail Price:  $50.59
  • LF-EC32-CP Tier1 Classic Ceramic Faucet - Chrome
  • EP-30 Pentek Replacement Filter Cartridge

    EP-30 Pentek Replacement Water Filter Cartridge

    $37.99 Retail Price:  $46.10
  • RDSH-C115 Culligan Showerhead

    RDSH-C115 Culligan Showerhead

    $38.99 Retail Price:  $48.98
  • CBC-10BB-WF Tier1 Water Filter Cartridge

    CBC-BB Pentek Comparable Water Filter Cartridge by Tier1

    $39.99 Retail Price:  $43.69

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