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!

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.

32 Item(s)

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  • Hydronix SDC-45-2001 Whole House Sediment Filter Cartridge
  • DGD-2501-20 Pentek Whole House Sediment Filter
  • Pentek ECP1-20BB Replacement Water Filter Cartridge

    ECP1-20BB Pentek Replacement Filter Cartridge

    $26.99 MSRP: $28.39
    Save 5%
  • P1-20BB Sediment Water Filter by Tier1
  • 3M Aqua-Pure AP1001 Whole House Water Filter Cartridge
  • W9240001 Doulton Specialty Replacement Filter Cartridge
  • PCC218 Pentek Replacement Filter Cartridge

    PCC218 Pentek Replacement Filter Cartridge

    $23.99
    MSRP: $26.44
    Save 9%
  • FXMLC-2PK GE SmartWater Faucet Filter Replacement Cartridge (2-Pack)
  • 41400010 Hydrotech Lead Filter
  • E5515-P Omnipure Replacement Filter Cartridge

    E5515-P Omnipure Replacement Filter Cartridge

    $25.99
    MSRP: $31.04
    Save 16%
  • E5520 Omnipure Replacement Filter Cartridge

    E5520 Omnipure Replacement Filter Cartridge

    $21.99
    MSRP: $26.44
    Save 17%
  • E5615 Omnipure Replacement Filter Cartridge

    E5615 Omnipure Replacement Filter Cartridge

    $26.99
    MSRP: $40.24
    Save 33%
  • E5620-P Omnipure Replacement Filter Cartridge

    E5620-P Omnipure Replacement Filter Cartridge

    $20.99
    MSRP: $31.04
    Save 32%
  • E5720-P Omnipure Replacement Filter Cartridge

    E5720-P Omnipure Replacement Filter Cartridge

    $25.99
    MSRP: $32.19
    Save 19%
  • ELF-1M Omnipure Replacement Filter Cartridge

    ELF-1M Omnipure Replacement Filter Cartridge

    $22.99
    MSRP: $28.74
    Save 20%
  • K5515-BB Omnipure Lead Cyst Inline Filter

    K5515-BB Omnipure Lead Cyst Inline Filter

    $23.99
    MSRP: $25.29
    Save 5%
  • Q5515-P Omnipure Replacement Filter Cartridge

    Q5515-P Omnipure Replacement Filter Cartridge

    $28.99
    MSRP: $35.64
    Save 19%
  • Q5615 Omnipure Replacement Filter Cartridge

    Q5615 Omnipure Replacement Filter Cartridge

    $29.99
    MSRP: $34.49
    Save 13%
  • Q5615-P Omnipure Replacement Filter Cartridge

    Q5615-P Omnipure Replacement Filter Cartridge

    $28.99
    MSRP: $36.79
    Save 21%
  • Q5620-P Omnipure Replacement Filter Cartridge

    Q5620-P Omnipure Replacement Filter Cartridge

    $23.99
    MSRP: $29.89
    Save 20%
  • CRE-1 Pentek Undersink Filter Replacement Cartridge

    CRE-1 Pentek Undersink Filter Replacement Cartridge

    $23.99
    MSRP: $30.69
    Save 22%
  • SWC-45-2001 Hydronix String Wound Sediment Water Filter

    SWC-45-2001 Hydronix String-Wound Sediment Water Filter

    $23.99
    MSRP: $27.59
    Save 13%
  • K5515-JJ Omnipure Inline Water Filter

    K5515-JJ Omnipure Inline Water Filter

    $23.99
    MSRP: $29.89
    Save 20%
  • SPC-45-2001 Hydronix Pleated Sediment Water Filter

    SPC-45-2001 Hydronix Pleated Sediment Water Filter

    $25.99
    MSRP: $34.49
    Save 25%
  • CB-45-1001 Hydronix Replacement Whole House Filter Cartridge
  • E5615-P Omnipure E-Series Water Filter

    E5615-P Omnipure E-Series Water Filter

    $29.99
    MSRP: $42.54
    Save 30%
  • K5520-BB Omnipure Carbon Block Inline Filter

    K5520-BB Omnipure Carbon Block Inline Filter

    $22.99
    MSRP: $28.74
    Save 20%
  • K5615-BB Omnipure Carbon Block Inline Filter

    K5615-BB Omnipure Carbon Block Inline Filter

    $24.99
    MSRP: $31.04
    Save 19%
  • Dupont WFFM300XW Low Profile Faucet Mount Drinking Water Filter System

32 Item(s)

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