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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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  • 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.

Items 1 to 48 of 58 total

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  • TO1SS OmniFilter Whole House Water Filter
  • PS5-10C Pentek Comparable Sediment Water Filter by Tier1
  • AP110 Aquapure Comparable Whole House Sediment Water Filter by Tier1
  • AP-GRMB-10PP-10UB Whole House Water Filter Replacement Cartridge
  • AP-GRMB-20PP-10UB Whole House Water Filter Cartridge by 3M Aqua-Pure
  • Hydronix SDC-25-1005 6-Pack Whole House Replacement Sediment Filter Cartridge
  • SPC-25-1005 Hydronix Pleated Sediment Water Filter (6-Pack)
  • SPC-25-1020 Hydronix Pleated Sediment Water Filter (6-Pack)
  • Hydronix SPC-25-1005 Pleated Water Filter

    SPC-25-1005 Hydronix Pleated Sediment Water Filter

    As Low As $5.16 Per Filter

  • SPC-25-1020 Hydronix Sediment Water Filter

    SPC-25-1020 Hydronix Pleated Sediment Water Filter

    As Low As $5.00 Per Filter

  • Pentek CW-MF Whole House Water Filter Replacement Cartridge

    CW-MF Pentek Whole House Filter Replacement Cartridge

    As Low As $5.60 Per Filter

  • Pentek ECP1-10 Replacement Water Filter Cartridge

    ECP1-10 Pentek Replacement Filter Cartridge

    As Low As $7.00 Per Filter

  • Pentek P1 Polyproplyene Water Filter (10 x 2 1/2)

    P1 Pentek Whole House Filter Replacement Cartridge

    As Low As $5.60 Per Filter

  • Pentek S1 Pleated Whole House Sediment Filter
  • RS14-SS OmniFilter Whole House Water Filter
  • RS1-SS OmniFilter Whole House Water Filter
  • The Pentek C1 comparable Whole House Carbon Water Filter by Tier1
  • Pentek S1-BB Replacement Water Filter Cartridge

    S1-BB Pentek Replacement Filter Cartridge

    As Low As $5.40 Per Filter

  • PS5-10C Pentek Comparable Sediment Water Filter by Tier1
  • S1 Pentek Comparable Whole House Water Filter by Tier1
  • W5W American Plumber Whole House Sediment Filter Cartridge (2-Pack)
  • 3M Aqua-Pure AP1001 Whole House Water Filter Cartridge
  • 3M Aqua-Pure AP1003 Water Filter Replacement Cartridge (2-Pack)
  • 3M Aqua-Pure AP110 Whole House Water Filter Cartridge
  • AP111 3M Aqua-Pure Whole House Filter Replacement Cartridge
  • 3M Aqua-Pure AP124 Whole House Water Filter Cartridge
  • 3M Aqua-Pure AP420 Water Filter Replacement Cartridge
  • P1-D Culligan Level 4 Whole House Filter Replacement Cartridge (2-Pack)
  • P5-D Culligan Level 4 Whole House Filter Replacement Cartridge (2-Pack)
  • CFS110 Cuno Whole House Filter Replacement Cartridge

    CFS110 Cuno Whole House Filter Replacement Cartridge

    $14.99 Retail Price:  $16.09
  • HF8-S Cuno Whole House Filter Replacement Cartridge

    HF8-S Cuno Whole House Water Filter Cartridge

    Regular Price: $50.99

    Special Price: $39.05

  • SDC-25-1005 Hydronix Whole House Replacement Sediment Filter Cartridge
  • SDC-25-1020 Hydronix Whole House Replacement Sediment Filter Cartridge
  • PCC-1 Pentek Undersink Filter Replacement Cartridge

    PCC-1 Pentek Undersink Filter Replacement Cartridge

    $41.99 Retail Price:  $53.23
  • PS1-10C Pentek Whole House Replacement Sediment Filter Cartridge
  • PS20-10C Pentek Whole House Replacement Sediment Filter Cartridge
  • RS14-DS OmniFilter Whole House Filter Replacement Cartridge (2-Pack)
  • RS2-SS OmniFilter Whole House Filter Replacement Cartridge

    RS2-SS OmniFilter Whole House Water Filter Cartridge

    $6.99 Retail Price:  $8.04
  • RS3-SS OmniFilter Whole House Filter Replacement Cartridge
  • RS7-SS OmniFilter Whole House Filter Replacement Cartridge
  • FPMB20-978 Watts Flo-Pro Replacement Filter Cartridge

    FPMB20-978 Watts Flo-Pro Replacement Water Filter

    $3.99 Retail Price:  $5.16
  • FPMB5-978 Watts Flo-Pro Replacement Filter Cartridge

    FPMB5-978 Watts Flo-Pro Water Filter Cartridge

    $4.99 Retail Price:  $5.16
  • WHKF-WHSW Whirlpool Whole House Replacement Sediment Filter Cartridge (2-Pack)
  • K00173 Manitowoc Tri-Liminator Replacement Ice Maker Pre-Filter Cartridge

    K00173 Manitowoc Tri-Liminator Ice Maker Pre-Filter

    $15.99 Retail Price:  $22.34
  • RS2DS OmniFilter Whole House Replacement Filter Cartridge (2-Pack)

Items 1 to 48 of 58 total

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