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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.

24 Item(s)

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  • AP-GRMB-20PP-10UB Whole House Water Filter Cartridge by 3M Aqua-Pure
  • SPC-25-1020 Hydronix Sediment Water Filter

    SPC-25-1020 Hydronix Pleated Sediment Water Filter

    $6.99 MSRP: $10.91
    Save 36%
  • Pentek S1 Pleated Whole House Sediment Filter
  • RS1-SS OmniFilter Whole House Water Filter
  • P20-20 Tier1 Sediment Water Filter

    P20-20 Tier1 Sediment Water Filter

    $6.99 MSRP: $9.19
    Save 24%
  • S1 Pentek Comparable Whole House Water Filter by Tier1
  • OmniFilter RS12-SS6-05 Polypropylene Sediment Filter

    OmniFilter RS12-SS6-05 Polypropylene Sediment Filter

    $4.99
    MSRP: $8.04
    Save 38%
  • S1A Culligan Level 2 Whole House Filter Replacement Cartridge (2-Pack)
  • 801-20 Harmsco Replacement Filter Cartridge

    801-20 Harmsco Replacement Filter Cartridge

    $7.99
    MSRP: $11.49
    Save 30%
  • 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
    MSRP: $8.04
    Save 38%
  • PX20-9-78 Purtrex Replacement Filter Cartridge

    PX20-9-78 Purtrex Water Filter Cartridge

    $3.99
    MSRP: $5.74
    Save 30%
  • RS3-SS OmniFilter Whole House Filter Replacement 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
    MSRP: $5.16
    Save 23%
  • GX20-20 Hytrex Replacement Filter Cartridge

    GX20-20 Hytrex Water Filter Cartridge

    $7.99
    MSRP: $11.49
    Save 30%
  • GX20-9-78 Hytrex Replacement Filter Cartridge

    GX20-9-78 Hytrex Water Filter Cartridge

    $6.89
    MSRP: $8.61
    Save 20%
  • PF-300S OmniFilter Water Pitcher Replacement Cartridge
  • RS3DS OmniFilter Whole House Replacement Filter Cartridge (2-Pack)

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