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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
  • E5520-K Omnipure Water Filter

    E5520-K Omnipure Water Filter

    $17.99 Retail Price:  $49.99
  • E5722-P Omnipure Carbon Block Water Filter

    E5722-P Omnipure Carbon Block Water Filter

    $33.99 Retail Price:  $49.99
  • FM-25 Culligan Water Faucet Filter

    FM-25 Culligan Water Faucet Filter

    $26.99 Retail Price:  $35.27
  • 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
  • US-UF3R Culligan Ultrafiltration Replacement Water Filter Cartridge Set
  • IC6-38Q Tier1 Inline Water Filter

    IC6-38Q Tier1 Inline Water Filter

    Regular Price: $8.99

    Special Price: $7.05

  • E5615-P Omnipure E-Series Water Filter

    E5615-P Omnipure E-Series Water Filter

    $29.99 Retail Price:  $42.54
  • RC-5 Rainshow’r Replacement Water Filter

    RC-5 Rainshow’r Replacement Water Filter

    $51.99 Retail Price:  $65.99
  • RC-0.5 Rainshow’r Replacement Water Filter

    RC-0.5 Rainshow’r Replacement Water Filter

    $92.99 Retail Price:  $115.00
  • BT-300 Rainshow’r Breakthrough Drinking Water Filtration System

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