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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 215 total

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  • 603053 Viqua Bottom Sleeve Bolt

    603053 Viqua Bottom Sleeve Bolt

    $30.99
    MSRP: $33.34
    Save 7%
  • 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
    MSRP: $38.99
    Save 21%
  • W9125010 Doulton Specialty Replacement Filter Cartridge
  • WFPF13003B DuPont Universal Whole House Filtration System
  • 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
    MSRP: $40.99
    Save 22%
  • 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

    $32.99 MSRP: $36.34
    Save 9%
  • 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
  • NCP-20BB Pentek Whole House Filter Replacement

    NCP-20BB Pentek Whole House Filter Replacement Cartridge

    $34.99 MSRP: $48.81
    Save 28%
  • 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
    MSRP: $48.00
    Save 25%
  • AF-10-2210 Aries Comparable Sediment Water Filter by Tier1
  • WFFMC303X DuPont Faucet Mount Replacement Cartridges - Ultra Protection Filter (3-pack)
  • WS01-WH Filtrete Water Station Filtered Water Bottle Filling Station
  • WFFM350XBN DuPont Deluxe Faucet Mount Drinking Water Filter - Brushed Nickel
  • 602732 Viqua Quartz Sleeve for 602805 UV Lamp

    602732 Viqua Quartz Sleeve for 602805 UV Lamp

    $37.99
    MSRP: $51.00
    Save 26%
  • EP5-20BB Tier1 Carbon Block Water Filter

    EP5-20BB Tier1 Carbon Block Water Filter

    $37.99 MSRP: $62.09
    Save 39%
  • ICF-2512-ALK Hydronix Inline Coconut Carbon Filter Cartridge
  • K5666-KK Omnipure Inline Fluoride Filter

    K5666-KK Omnipure Inline Fluoride Filter

    $38.99
    MSRP: $50.99
    Save 24%
  • P5-10BB Tier1 Sediment Water Filter (4-pack)
  • 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
    MSRP: $49.00
    Save 18%
  • Pentek PO1HE2 Polypropylene High Efficiency Filter Bag

    Pentek PO1HE2 Polypropylene High Efficiency Filter Bag

    $30.99
    MSRP: $174.79
    Save 82%
  • Hydrotech 92192 Chrome Long Reach Faucet

    Hydrotech 92192 Chrome Long Reach Faucet

    $32.99
    MSRP: $35.64
    Save 7%
  • Axeon 200359 Reverse Osmosis Membrane

    Axeon 200359 Reverse Osmosis Membrane

    $34.99
    MSRP: $36.79
    Save 5%
  • Pentek 150070 20 inch Blue Standard Filter Housing

    Pentek 150070 20 inch Blue Standard Filter Housing

    $36.99
    MSRP: $43.69
    Save 15%
  • 602732 Trojan UV Max Quartz Sleeve
  • Axeon 200361 Reverse Osmosis Membrane

    Axeon 200361 Reverse Osmosis Membrane

    $38.99
    MSRP: $48.99
    Save 20%
  • Pentek 166141 Big White 20-inch Filter Housing

    Pentek 166141 Big White 20-inch Filter Housing

    $39.95
    MSRP: $58.64
    Save 32%
  • 35618 Brita Faucet Filter System - Chrome - 1

    Brita Chrome Faucet Filter System (#35618)

    $30.05
    MSRP: $59.79
    Save 50%
  • ACC5-CM Sprite Cascade Filtered Shower Head (5-Setting)

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

    $30.05
    MSRP: $55.19
    Save 46%
  • 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
    MSRP: $49.56
    Save 37%
  • 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
    MSRP: $44.84
    Save 31%
  • D-250A Culligan Undersink Filter Replacement Cartridge Set
  • ISH-200 Culligan Inline Shower Filter - Chrome

    ISH-200 Culligan Inline Shower Filter - Chrome

    $30.99
    MSRP: $32.19
    Save 4%
  • W9120562 Doulton Sterasyl Undersink Ceramic Candle Replacement Filter Cartridge

Items 1 to 48 of 215 total

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