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  • Your filters are guaranteed to be the right fit!
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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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  • WSK-1 Water Sentinel Replacement Water Filters (2-Pack)

    WSK-1 Water Sentinel Replacement Water Filters (2-Pack)

    $26.99 Retail Price:  $33.34
  • TFM-36-EB Desal Reverse Osmosis Membrane

    TFM-36-EB Desal Reverse Osmosis Membrane

    $52.99 Retail Price:  $79.34
  • TFM-18-EB Desal Reverse Osmosis Membrane

    TFM-18-EB Desal Reverse Osmosis Membrane

    $59.99 Retail Price:  $71.29
  • E5722-P Omnipure Carbon Block Water Filter

    E5722-P Omnipure Carbon Block Water Filter

    $33.99 Retail Price:  $49.99
  • US-UF3 Culligan Ultrafiltration Drinking Water System

    US-UF3 Culligan Ultrafiltration Drinking Water System

    Regular Price: $172.99

    Special Price: $143.05

  • FM-25R Culligan Replacement Faucet Filter

    FM-25R Culligan Replacement Faucet Filter

    $12.99 Retail Price:  $24.99
  • CQE-RC-04006 Crystal Quest Fluoride Water Filter

    CQE-RC-04006 Crystal Quest Fluoride Water Filter

    $47.99 Retail Price:  $63.24
  • CQE-RC-04046 Crystal Quest Replacement Faucet Filter

    CQE-RC-04046 Crystal Quest Replacement Faucet Filter

    $17.99 Retail Price:  $24.14
  • E5654 Omnipure Water Softening Water Filter

    E5654 Omnipure Water Softening Water Filter

    Regular Price: $24.99

    Special Price: $14.05

  • CQE-FM-00500 Crystal Quest Faucet Filter (White)

    CQE-FM-00500 Crystal Quest Faucet Filter (White)

    $27.99 Retail Price:  $33.34
  • CL6PF5-C Omnipure Sediment Inline Water Filter

    CL6PF5-C Omnipure Sediment Inline Water Filter

    Regular Price: $7.99

    Special Price: $6.05

  • E5615-P Omnipure E-Series Water Filter

    E5615-P Omnipure E-Series Water Filter

    $29.99 Retail Price:  $42.54

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