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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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  • AP-GRMB-20PP-20UB Whole House Water Filter Replacement Cartridge
  • AP-GRMB-20PP-10UB Whole House Water Filter Cartridge by 3M Aqua-Pure
  • SDC-45-1020 Hydronix Whole House Sediment Filter Cartridge (6-Pack)
  • SDC-45-2020 Hydronix Sediment Water Filter 6-Pack
  • Hydronix SDC-45-1020 Sediment Filter Cartridge
  • SDC-45-2020 Hydronix Sediment Water Filter

    SDC-45-2020 Hydronix Sediment Water Filter Cartridge

    As Low As $18.83 Per Filter

  • SDC-45-1020 Hydronix Comparable Sediment Water Filter by Tier1
  • P20-20 Tier1 Sediment Water Filter

    P20-20 Tier1 Sediment Water Filter

    As Low As $5.24 Per Filter

  • Tier1 P20-20BB Whole House Replacement Sediment Filter Cartridge
  • OmniFilter RS12-SS6-05 Polypropylene Sediment Filter

    OmniFilter RS12-SS6-05 Polypropylene Sediment Filter

    $4.99 Retail Price:  $8.04
  • SDC-25-1020 Hydronix Whole House Replacement Sediment Filter Cartridge
  • SDC-25-2020 Hydronix Whole House Replacement Sediment Filter Cartridge
  • PS20-10C Pentek Whole House Replacement Sediment Filter Cartridge
  • PX20-20 Purtrex Replacement Filter Cartridge

    PX20-20 Purtrex Replacement Water Filter

    $4.99 Retail Price:  $8.04
  • PX20-9-78 Purtrex Replacement Filter Cartridge

    PX20-9-78 Purtrex Water Filter Cartridge

    $3.99 Retail Price:  $5.74
  • RS3-SS OmniFilter Whole House Filter Replacement Cartridge
  • FPMB-BB20-10 Watts Flo-Pro Whole House Replacement Filter Cartridge
  • FPMB20-20 Watts Flo-Pro Whole House Replacement Filter Cartridge
  • FPMB20-978 Watts Flo-Pro Replacement Filter Cartridge

    FPMB20-978 Watts Flo-Pro Replacement Water Filter

    $3.99 Retail Price:  $5.16
  • GX20-20 Hytrex Replacement Filter Cartridge

    GX20-20 Hytrex Water Filter Cartridge

    $7.99 Retail Price:  $11.49
  • GX20-9-78 Hytrex Replacement Filter Cartridge

    GX20-9-78 Hytrex Water Filter Cartridge

    $6.89 Retail Price:  $8.61
  • RS3DS OmniFilter Whole House Replacement Filter Cartridge (2-Pack)

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