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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.

Items 49 to 89 of 89 total

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  • GAC-10 Pentek Undersink Filter Replacement Cartridge

    GAC-10 Pentek Undersink Filter Replacement Cartridge

    $12.99 Retail Price:  $17.99
  • GS-10-B Pentek Inline Filter Replacement Cartridge
  • GS-10-JG14 Pentek Inline Filter System

    GS-10-JG14 Pentek Inline Water Filtration System

    $12.99 Retail Price:  $15.28
  • GS-10ALS-JG14 Pentek Inline Filter System

    GS-10ALS-JG14 Pentek Inline Water Filter

    $13.39 Retail Price:  $17.70
  • GS-215-CB5-B Pentek Inline Filter Replacement Cartridge

    GS-215-CB5-B Pentek Inline Water Filter Cartridge

    $24.69 Retail Price:  $30.69
  • MG-10MCB Pentek MicroGuard Replacement Filter Cartridge

    MG-10MCB Pentek MicroGuard Replacement Filter Cartridge

    $72.99 Retail Price:  $84.05
  • TSGAC-10 Pentek Undersink Filter Replacement Cartridge

    TSGAC-10 Pentek Undersink Filter Replacement Cartridge

    $20.99 Retail Price:  $24.60
  • UVS-110-1 Pentek UV System
  • MAXETW-975 Watts C-MAX Replacement Filter Cartridge
  • WHKF-DB1 Whirlpool Undersink Replacement Filter Cartridge
  • Whirlpool WHKF-DB2 Undersink Replacement Water Filter Cartridge
  • IF14C Ice-O-Matic Inline Water Filtration Cartridge

    IF14C Ice-O-Matic Inline Water Filter

    $90.99 Retail Price:  $97.74
  • IF18C Ice-O-Matic Inline Water Filtration Cartridge - 1

    IF18C Ice-O-Matic Inline Water Filter Cartridge

    $99.99 Retail Price:  $117.29
  • 1040 Katadyn Camping Water Filter Kit

    1040 Katadyn Camping Water Filter Kit

    $199.95 Retail Price:  $232.24
  • 8016389 Katadyn Camping Filter System

    8016389 Katadyn Camping Filter System

    $1,499.95 Retail Price:  $1727.24
  • PLEKX-10-10 KX Technologies PlekX Whole House Filter Replacement Cartridge
  • 9001 Moen Faucet Filter Replacement Cartridge - 1

    9001 Moen Faucet Filter Cartridge

    $67.99 Retail Price:  $73.59
  • SFM2 OmniFilter Undersink Water Filter System

    USM2-S-S06 OmniFilter Undersink Water Filtration System

    $35.99 Retail Price:  $48.29
  • BBF1-20MB Pentek Whole House Filter Replacement Cartridge

    BBF1-20MB Pentek Whole House Filter Replacement Cartridge

    $89.99 Retail Price:  $144.23
  • CBC-5 Pentek Undersink Filter Replacement Cartridge

    CBC-5 Pentek Undersink Filter Replacement Cartridge

    $9.99 Retail Price:  $16.55
  • CBR2-10 Pentek Undersink Filter Replacement Cartridge
  • CC-10 Pentek Undersink Filter Replacement Cartridge

    CC-10 Pentek Undersink Filter Replacement Cartridge

    $14.99 Retail Price:  $15.34
  • CCBC-10 Pentek Undersink Filter Replacement Cartridge

    CCBC-10 Pentek Undersink Filter Replacement Cartridge

    $18.99 Retail Price:  $19.31
  • CEP-10E Pentek Replacement Filter Cartridge

    CEP-10E Pentek Replacement Filter Cartridge

    $12.99 Retail Price:  $16.34
  • CFB-Plus10 Pentek Replacement Filter Cartridge

    CFB-Plus10 Pentek Replacement Water Filter Cartridge

    $9.99 Retail Price:  $14.13
  • CRE-1 Pentek Undersink Filter Replacement Cartridge

    CRE-1 Pentek Undersink Filter Replacement Cartridge

    $23.99 Retail Price:  $30.69
  • W9220406 Doulton Replacement Ceramic Filter

    W9220406 Doulton Replacement Ceramic Filter

    $45.99 Retail Price:  $52.73
  • W9221000 Doulton Replacement Ceramic Filter
  • W9220402 Doulton Slim Line Replacement Ceramic Filter

    W9220402 Doulton Slim Line Replacement Ceramic Filter

    $30.99 Retail Price:  $34.55
  • W9330958 Doulton SuperCarb Undersink Ceramic Candle Filter System
  • W9121302 Doulton Imperial Supersterasyl Undersink Ceramic Candle Replacement Filter Cartridge
  • W9331028 Doulton SuperCarb Countertop Filter System

    W9331028 Doulton HCP SuperCarb Countertop Filter System

    $147.05 Retail Price:  $174.79
  • W9121202 Doulton AquaCera Supersterasyl Undersink Ceramic Candle Replacement Filter Cartridge
  • W9320007 Doulton Undersink Ceramic Candle Filter Housing

    W9320007 Doulton Undersink Ceramic Candle Filter Housing

    $151.99 Retail Price:  $167.57
  • CB-25-2001 Hydronix Carbon Water Filter Replacement

    CB-25-2001 Hydronix Carbon Water Filter Replacement

    Regular Price: $17.99

    Special Price: $16.05

  • CB-45-2001 Hydronix Whole House Carbon Replacement Water Filter Cartridge

Items 49 to 89 of 89 total

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