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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!
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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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  • EP10-10 Tier1 Carbon Block Water Filter

    EP10-10 Tier1 Carbon Block Water Filter

    As Low As $7.67 Per Filter

  • EP5-10 Tier1 Carbon Block Water Filter

    EP5-10 Tier1 Carbon Block Water Filter

    As Low As $7.67 Per Filter

  • EPM-BB Pentek Comparable Carbon Whole House Water Filter
  • KDF55-20 Tier1 Replacement Filter Cartridge

    KDF55-20 Tier1 Replacement Filter Cartridge

    Regular Price: $90.99

    Special Price: $55.05

  • IC6-38Q Tier1 Inline Water Filter

    IC6-38Q Tier1 Inline Water Filter

    Regular Price: $8.99

    Special Price: $7.05

  • EP5-20 Tier1 Carbon Block Water Filter

    EP5-20 Tier1 Carbon Block Water Filter

    $16.99 Retail Price:  $20.69
  • CBC-10BB-WF Tier1 Water Filter Cartridge
  • CBC-20 Tier1 Water Filter Cartridge

    CBC-20 Tier1 Water Filter Cartridge

    Regular Price: $25.99

    Special Price: $20.05

  • CBC-20BB-WF Tier1 Water Filter Cartridge

    CBC-20BB-WF Tier1 Water Filter Cartridge

    $69.99 Retail Price:  $83.94
  • EP5-10BB Tier1 Carbon Block Water Filter

    EP5-10BB Tier1 Carbon Block Water Filter

    $23.99 Retail Price:  $26.34
  • EP5-20BB Tier1 Carbon Block Water Filter

    EP5-20BB Tier1 Carbon Block Water Filter

    $40.99 Retail Price:  $62.09
  • KDF55-10 Tier1 Water Filter

    KDF55-10 Tier1 Water Filter

    $24.99 Retail Price:  $27.34
  • KDF55-10BB Tier1 Water Filter
  • KDF85-10BB Tier1 Water Filter

    KDF85-10BB Tier1 Water Filter

    $83.99 Retail Price:  $86.24
  • KDF85-20 Tier1 Water Filter

    KDF85-20 Tier1 Water Filter

    $105.99 Retail Price:  $121.89

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