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  • Your filters are guaranteed to be the right fit!
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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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  • 3M Aqua-Pure AP-250R Under Sink Water Filter

    AP-250R 3M Aqua-Pure Undersink Water Filter Cartridge

    $29.99 Retail Price:  $41.39
  • 3M Aqua-Pure AP-DW70 Undersink Filter Replacement Cartridge
  • EP35R 3M Aqua-Pure Water Filter Cartridge

    EP35R 3M Aqua-Pure Replacement Water Filter Cartridge

    $115.99 Retail Price:  $123.04
  • WI-BG3000C Body Glove Replacement Filter Cartridge

    WI-BG3000C Body Glove Replacement Filter Cartridge

    $151.46 Retail Price:  $201.95
  • WI-BG3000R Body Glove Replacement Filter Cartridge

    WI-BG3000R Body Glove Replacement Filter Cartridge

    $138.71 Retail Price:  $184.95
  • CB3 OmniFilter Undersink Filter Replacement Cartridge
  • C-2 Culligan RV Filter Replacement Cartridge (2-Pack)
  • D-10-TWIN Culligan Level 1 Undersink Filter Replacement Cartridge (2-Pack)
  • D-15 Culligan Level 1 Undersink Filter Replacement Cartridge (2-Pack)
  • NCP-10 Culligan Whole House 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
  • RWC-5 Culligan Level 1 Undersink Filter Replacement Cartridge
  • P-124B Cuno Whole House Filter Replacement Cartridge

    P-124B Cuno Whole House Water Filter Cartridge

    $97.05 Retail Price:  $128.79
  • W9121214 Doulton ATC Super Sterasyl Replacement Element

    W9121214 Doulton ATC Super Sterasyl Ceramic Water Filter

    $37.94 Retail Price:  $47.91
  • EV9275-70 Everpure QL2-OW200L Filter System

    EV9275-70 Everpure QL2-OW200L Filter System

    Regular Price: $101.99

    Special Price: $70.05

  • EV9300-35 Everpure proseries 3500 Replacement Filter Cartridge
  • EV9619-06 Everpure OW200L Replacement Filter Cartridge

    EV9619-06 Everpure OW200L Replacement Filter Cartridge

    $81.00 Retail Price:  $95.45
  • CBF3-S-05 OmniFilter Undersink Filter System

    CBF3-S-05 OmniFilter Undersink Water Filtration System

    $105.99 Retail Price:  $108.34
  • GAC-5 Pentek Replacement Filter Cartridge
  • TRC-MM SteriPEN Portable UV System
  • 47-55711G2 Water Factory Systems Whole House Replacement Filter Cartridge
  • FM-350-DWS Water Factory Systems FaucetMATE Faucet Filter System
  • Whirlpool WHKF-DB2 Undersink Replacement Water Filter Cartridge
  • OT32-S-05 OmniFilter Whole House Filter System

    OT32-S-05 OmniFilter Undersink Water Filtration System

    $112.99 Retail Price:  $132.24
  • WSK-1 Water Sentinel Replacement Water Filters (2-Pack)
  • WHEEDF Whirlpool UltraEase Water Filter Pack

    WHEEDF Whirlpool UltraEase Water Filter Pack

    $47.99 Retail Price:  $59.79
  • US-UF3 Culligan Ultrafiltration Drinking Water System
  • US-UF3R Culligan Ultrafiltration Replacement Water Filter Cartridge Set
  • WHED20 Whirlpool Undersink Water Filtration System

    WHED20 Whirlpool Undersink Water Filtration System

    $105.99 Retail Price:  $124.19
  • WHERF Whirlpool Reverse Osmosis System Pre and Post Filter Set
  • BG-3000 Body Glove Water Filtration System

    BG-3000 Body Glove Water Filtration System

    $392.96 Retail Price:  $441.59
  • Water Sentinel WSAQ-1 Drinking Water Filter Replacement

    Water Sentinel WSAQ-1 Drinking Water Filter Replacement

    Regular Price: $42.99

    Special Price: $39.05

  • NCP-BB Pentek Comparable Whole House Carbon Filter by Tier1
  • K5666-KK Omnipure Inline Fluoride Filter

    K5666-KK Omnipure Inline Fluoride Filter

    $38.99 Retail Price:  $50.99
  • Pentek NCP-20 Whole House Water Filter Replacement Cartridge

    NCP-20 Pentek Whole House Filter Replacement Cartridge

    As Low As $13.00 Per Filter

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