Discount Water Filters and Air Filters at Discount Filter Store.com

When we protect your filter purchase with our No Worries Guarantee, we mean it!

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  • Your filters are guaranteed to be the right fit!
  • Our products are price match guaranteed!
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  • You’re guaranteed to find expert help!

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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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  • ELF-1M-P-KDF Omnipure comparable granular activated carbon filter by Tier1
  • 4621-12 Nucalgon Comparable Food Service Replacement Filter by Tier1
  • 4621-31 Nucalgon Comparable Food Service Replacement Filter by Tier1
  • 4621-10 Nucalgon Comparable Food Service Replacement Filter by Tier1
  • 4621-11 Nucalgon Comparable Food Service Replacement Filter by Tier1
  • NU-i20002 Nucalgon Comparable Food Service Replacement Filter by Tier1
  • ECO-i20002 Nucalgon Comparable Food Service Replacement Filter by Tier1
  • CFS9710-S Cuno Comparable Food Service Replacement Filter by Tier1
  • CFS9110-S Cuno Comparable Food Service Replacement Filter by Tier1
  • CFS9812X-S Cuno Comparable Food Service Replacement Filter by Tier1
  • CFS9112-S Cuno Comparable Food Service Replacement Filter by Tier1
  • AP317 Aquapure Comparable Food Service Replacement Filter by Tier1
  • 9320-2402 Ecolab Comparable Food Service Replacement Filter by Tier1
  • 9320-2403 Ecolab Comparable Food Service Replacement Filter by Tier1
  • FL4S Follett Comparable Food Service Replacement Filter by Tier1
  • 130245 Follett Comparable Food Service Replacement Filter by Tier1
  • 954297 Follett Comparable Food Service Replacement Filter by Tier1
  • SSMRC1 Scotsman Comparable Food Service Replacement Filter by Tier1
  • ECP1-20BB Pentek Comparable Replacement Filter Cartridge by Tier1
  • Hydronix SDC-25-3001 Polypropylene Sediment Filter
  • Pentek BPH-410-1 Polypropylene High Efficiency Filter Bag
  • Pentek KO1HE3 Polypropylene High Efficiency Filter Bag

    Pentek KO1HE3 Polypropylene High Efficiency Filter Bag

    $16.99
    MSRP: $19.34
    Save 12%
  • Pentek PD-1-30 Polypropylene Sediment Filter
  • Pentek PO1HE2 Polypropylene High Efficiency Filter Bag

    Pentek PO1HE2 Polypropylene High Efficiency Filter Bag

    $32.09
    MSRP: $40.99
    Save 22%
  • 4373529 Whirlpool Undersink Filter Replacement Cartridge
  • 4373574 Whirlpool Undersink Filter Kit
  • 4373575 Whirlpool Undersink Filter Kit
  • 3M Aqua-Pure AP1001 Whole House Water Filter Cartridge
  • 3M Aqua-Pure APIL3R Inline Water Filter
  • CB6 OmniFilter Whole House Filter Replacement Cartridge
  • CQE-CO-02028 Crystal Quest Commercial Reverse Osmosis Filter System

    CQE-CO-02028 Crystal Quest Commercial Reverse Osmosis Filter System

    $5,099.99
    MSRP: $5,867.29
    Save 13%
  • CQE-RC-04002 Crystal Quest PLUS Multi-Stage Replacement Filter Cartridge
  • P1-D Culligan Level 4 Whole House Filter Replacement Cartridge (2-Pack)
  • CFS8112 Cuno Whole House Filter Replacement Cartridge

    CFS8112 Cuno Whole House Filter Replacement Cartridge

    $63.05
    MSRP: $69.56
    Save 9%
  • CFS8112-S Cuno Whole House Filter Replacement Cartridge

    CFS8112-S Cuno Whole House Filter Replacement Cartridge

    $70.99
    MSRP: $94.29
    Save 25%
  • CFS9112 Cuno Whole House Filter Replacement Cartridge

    CFS9112 Cuno Whole House Filter Replacement Cartridge

    $62.99
    MSRP: $71.29
    Save 12%
  • CS-11 Cuno Replacement Filter Cartridge

    CS-11 Cuno Replacement Filter Cartridge

    $61.29
    MSRP: $81.99
    Save 25%
  • HC111-S Cuno Replacement Filter Cartridge

    HC111-S Cuno Replacement Filter Cartridge

    $37.99
    MSRP: $54.99
    Save 31%
  • HF25 Cuno Whole House Filter Replacement Cartridge
  • HF25-S Cuno Whole House Filter Replacement Cartridge

    HF25-S Cuno Whole House Filter Replacement Cartridge

    $67.99
    MSRP: $69.56
    Save 2%
  • W9240001 Doulton Specialty Replacement Filter Cartridge
  • FX12P GE SmartWater Reverse Osmosis Filter Set

    FX12P GE SmartWater Reverse Osmosis Filter Set

    $62.29
    MSRP: $82.99
    Save 25%
  • HB-20-1W Harmsco Calypso Blue Replacement Filter Cartridge
  • SDC-45-1001 Hydronix Whole House Replacement Sediment Filter Cartridge
  • P1-30 Pentek Whole House Replacement Sediment Filter Cartridge

    P1-30 Pentek Whole House Sediment Water Filter

    $13.99
    MSRP: $14.13
    Save 1%
  • PCC218 Pentek Replacement Filter Cartridge

    PCC218 Pentek Replacement Filter Cartridge

    $23.99
    MSRP: $26.44
    Save 9%
  • PD-1-20 Pentek Whole House Replacement Sediment Filter Cartridge
  • PD-1-40 Pentek Whole House Replacement Sediment Filter Cartridge

Items 97 to 144 of 251 total

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