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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 1 to 48 of 212 total

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  • 603053 Viqua Bottom Sleeve Bolt

    603053 Viqua Bottom Sleeve Bolt

    $30.99 Retail Price:  $33.34
  • SPC-25-1005 Hydronix Pleated Sediment Water Filter (6-Pack)
  • Desal TFM-18-C Reverse Osmosis Membrane

    Desal TFM-18-C Reverse Osmosis Membrane

    $30.99 Retail Price:  $38.99
  • WFPF13003B DuPont Universal Whole House Filtration System
  • ICF-2512-ALK Hydronix Inline Coconut Carbon Filter Cartridge
  • AF-10-2011 Aries Specialty Cartridge 10-inch x 2.5-inch 1 LBS KDF/GAC
  • Garnet-812 Watts Water Treatment Media #8-12

    Garnet-812 Watts Water Treatment Media #8-12

    $31.99 Retail Price:  $40.99
  • WFPF38001C DuPont Universal Valve-In-Head Whole House Water Filtration System
  • NCP-BB Pentek Whole House Water Filter

    NCP-BB Pentek Whole House Filter Replacement Cartridge

    As Low As $32.00 Per Filter

  • OB1-S-S06 OmniFilter Undersink Water Filter System
  • WFDWC70001 DuPont Universal Drinking Water Carbon Block Cartridge
  • W9222909 Doulton Imperial SuperCarb OBE Replacement Element
  • Triton Water Filters Replacement Color Changing Di Cartridge Hydrologic 22016
  • P5-20BB Tier1 Whole House Sediment Water Filter (2-Pack)
  • NCP-20BB Pentek Whole House Filter Replacement
  • AF-20-2015 Aries Comparable Sediment Water Filter by Tier1
  • QS-810 Viqua Quartz Sleeve for S810RL UV Lamp

    QS-810 Viqua Quartz Sleeve for S810RL UV Lamp

    $35.99 Retail Price:  $48.00
  • AF-10-2210 Aries Comparable Sediment Water Filter by Tier1
  • 602732 Viqua Quartz Sleeve for 602805 UV Lamp

    602732 Viqua Quartz Sleeve for 602805 UV Lamp

    $37.99 Retail Price:  $51.00
  • K5666-KK Omnipure Inline Fluoride Filter

    K5666-KK Omnipure Inline Fluoride Filter

    $38.99 Retail Price:  $50.99
  • WFDW120009W DuPont Universal Drinking Water Filter System
  • Aries AF-10-2115 KDF/Granular Activated Carbon

    Aries AF-10-2115 KDF/Granular Activated Carbon

    $39.99 Retail Price:  $49.00
  • EP5-20BB Tier1 Carbon Block Water Filter

    EP5-20BB Tier1 Carbon Block Water Filter

    As Low As $30.00 Per Filter

  • Pentek PO1HE2 Polypropylene High Efficiency Filter Bag

    Pentek PO1HE2 Polypropylene High Efficiency Filter Bag

    $30.99 Retail Price:  $174.79
  • Hydrotech 92192 Chrome Long Reach Faucet

    Hydrotech 92192 Chrome Long Reach Faucet

    $32.99 Retail Price:  $35.64
  • Axeon 200359 Reverse Osmosis Membrane

    Axeon 200359 Reverse Osmosis Membrane

    $34.99 Retail Price:  $36.79
  • Pentek 150070 20 inch Blue Standard Filter Housing

    Pentek 150070 20 inch Blue Standard Filter Housing

    $36.99 Retail Price:  $43.69
  • 602732 Trojan UV Max Quartz Sleeve
  • Pentek 166141 Big White 20-inch Filter Housing

    Pentek 166141 Big White 20-inch Filter Housing

    $39.95 Retail Price:  $58.64
  • Axeon 200361 Reverse Osmosis Membrane

    Axeon 200361 Reverse Osmosis Membrane

    $39.99 Retail Price:  $48.29
  • 35618 Brita Faucet Filter System - Chrome - 1

    Brita Chrome Faucet Filter System (#35618)

    Regular Price: $36.99

    Special Price: $30.05

  • ACC5-CM Sprite Cascade Filtered Shower Head (5-Setting)

    ACC5-CM Sprite Cascade Filtered Shower Head (5-Setting)

    Regular Price: $43.99

    Special Price: $30.05

  • LF-EC32-CP Hydronix Elegant Ceramic Faucet with 3-inch Shank
  • QC10-CBR-THREADED Pentek Undersink Quick-Change Filter System
  • CR-5000 PUR Flavor Options 56-Ounce Water Pitcher
  • 3M Aqua-Pure AP431 Inline Filter Replacement Cartridge

    AP431 3M Aqua-Pure Inline Filter Replacement Cartridge

    $30.99 Retail Price:  $33.25
  • 3M Aqua-Pure AP814 Whole House Water Filter
  • 42412 Brita Atlantis OB32 48-Ounce Water Pitcher

    42412 Brita Atlantis OB32 48-Ounce Water Pitcher

    $30.99 Retail Price:  $44.84
  • 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
  • W9120562 Doulton Sterasyl Undersink Ceramic Candle Replacement Filter Cartridge
  • F8-CHROME Instapure Ultra Faucet Filter System - Chrome

    F8-CHROME Instapure Ultra Faucet Filter System - Chrome

    $30.99 Retail Price:  $33.34

Items 1 to 48 of 212 total

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