Call Toll-Free: 1-800-277-3458

My Cart:

0 item(s)

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.

47 Item(s)

Grid  List 

Set Descending Direction
  • Hydronix SDC-25-1005 6-Pack Whole House Replacement Sediment Filter Cartridge
  • DGD-7525-20 Pentek Whole House Water Filter
  • EP5-10BB Tier1 Carbon Block Water Filter

    EP5-10BB Tier1 Carbon Block Water Filter

    As Low As $15.60 Per Filter

  • Pentek ECP20-20BB Replacement Water Filter Cartridge

    ECP20-20BB Pentek Replacement Filter Cartridge

    As Low As $21.33 Per Filter

  • Pentek ECP50-20BB Replacement Water Filter Cartridge

    ECP50-20BB Pentek Replacement Filter Cartridge

    As Low As $22.67 Per Filter

  • RFC-BBS-D Culligan Comparable Whole House Carbon Water Filter by Tier1
  • Pentek ECP1-20BB Replacement Water Filter Cartridge

    ECP1-20BB Pentek Replacement Filter Cartridge

    As Low As $23.00 Per Filter

  • Pentek EPM-BB Replacement Water Filter Cartridge

    EPM-BB Pentek Replacement Filter Cartridge

    As Low As $23.00 Per Filter

  • EP-BB Pentek Replacement Filter Cartridge

    EP-BB Pentek Replacement Filter Cartridge

    As Low As $22.00 Per Filter

  • CBC-20 Tier1 Water Filter Cartridge

    CBC-20 Tier1 Water Filter Cartridge

    Regular Price: $24.99

    Special Price: $20.05

  • IC-EZ-1 Culligan Level 1 Easy-Change Inline Filter System
  • RV-700 Culligan Level 1 Inline RV Pre-Tank Exterior Filter
  • W5CIP American Plumber Undersink Filter Replacement Cartridge (2-Pack)
  • HF-150 Culligan Whole House Filter System

    HF-150 Culligan Whole House Filter System

    $21.99 Retail Price:  $26.44
  • FM-5R Culligan Level 3 Faucet Filter Replacement Cartridge
  • RV-600A Culligan Level 1 Inline RV Pre-Tank Exterior Filter
  • FM-15A Culligan Level 3 On-Tap Faucet Filter System

    FM-15A Culligan Level 3 On-Tap Faucet Filter System

    $22.99 Retail Price:  $28.51
  • IC-1000 Culligan Inline Filter
  • PR-3 Culligan Water Pitcher Replacement Cartridge (3-Pack)
  • PR-3U Culligan Universal Water Pitcher Replacement Cartridge (3-Pack)
  • CFBC-20 Pentek Replacement Filter Cartridge

    CFBC-20 Pentek Replacement Water Filter Cartridge

    $23.49 Retail Price:  $29.31
  • W30PEHD American Plumber Whole House Heavy Duty Filter Cartridge
  • W50PEHD American Plumber Whole House Heavy Duty Filter Cartridge
  • P-250 Pentek Undersink Filter Set

    P-250 Pentek Undersink Filter Set

    $23.99 Retail Price:  $28.99
  • P-250A Pentek Undersink Filter Set

    P-250A Pentek Undersink Filter Set

    $23.99 Retail Price:  $29.13
  • PCC218 Pentek Replacement Filter Cartridge

    PCC218 Pentek Replacement Filter Cartridge

    $23.99 Retail Price:  $26.44
  • P1020266 Culligan Carbon Block Water Filter
  • D-30 Culligan Level 2 Undersink Filter Replacement Cartridge
  • FCT-1 Culligan Drinking Water Faucet - Chrome

    FCT-1 Culligan Drinking Water Faucet - Chrome

    $24.99 Retail Price:  $31.04
  • ISH-100 Culligan Level 2 Inline Shower Filter for 1/2 inch thread Shower Heads
  • RC-EZ-3 Culligan Level 3 Easy-Change Inline Filter Replacement Cartridge
  • TFM-24 Desal Reverse Osmosis Membrane

    TFM-24 Desal Reverse Osmosis Membrane

    $24.99 Retail Price:  $47.14
  • FXPL3D GE Pitcher Replacement Cartridge (3-Pack)
  • CBC-20 Pentek Replacement Filter Cartridge

    CBC-20 Pentek Replacement Filter Cartridge

    $25.99 Retail Price:  $35.64
  • WDF-103SS Tier1 Long-Reach Stainless Steel Faucet
  • P1012581 Culligan Undersink Replacement Filter Cartridge
  • RV-800 Culligan Level 1 Inline RV Pre-Tank Exterior Filter
  • WS-20 Pentek Water Softening Filter

    WS-20 Pentek Water Softening Filter

    $26.99 Retail Price:  $35.64
  • FM-25 Culligan Water Faucet Filter

    FM-25 Culligan Water Faucet Filter

    $26.99 Retail Price:  $35.27
  • RFC-BBS-D Culligan Level 4 Whole House Filter Replacement Cartridge
  • TS-500 Culligan Large Capacity Inline Filter Replacement Cartridge
  • FU-WDF-103-W Tier1 Long-Reach Faucet - White
  • LF-EC25-CP Tier1 Contemporary Ceramic Faucet - Chrome

    LF-EC25-CP Tier1 Contemporary Ceramic Faucet - Chrome

    Regular Price: $30.99

    Special Price: $28.05

  • W20CLHD20 American Plumber Whole House 20-inch Heavy Duty Filter Cartridge
  • 1000R-D Culligan Level 3 Undersink RV and Marine Icemaker and Drinking Water Filter
  • SY-1000 Culligan Water Filtration System
  • LF-BLR-BN Tier1 Long-Reach Faucet - Brushed Nickel

    LF-BLR-BN Tier1 Long-Reach Faucet - Brushed Nickel

    $29.99 Retail Price:  $36.79

47 Item(s)

Grid  List 

Set Descending Direction
Scroll To Top