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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 92 total

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  • PS5-10C Pentek Comparable Sediment Water Filter by Tier1
  • 155014-43 Pentek Comparable Whole House Sediment Water Filter by Tier1
  • PD-25-934 Pentek Comparable Whole House Water Filter by Tier1
  • RS2SS OmniFilter Comparable Whole House Water Filter by Tier1
  • P1 Pentek 10 x 2.5-inch Whole House Sediment Water Filter Replacement
  • P5-10 Tier1 Sediment Water Filter

    P5-10 Tier1 Sediment Water Filter

    $3.99 MSRP: $10.34
    Save 61%
  • P20 Pentek 10 x 2.5-inch Comparable Whole House Sediment Water Filter
  • PX05-9-78 Purtrex Replacement Water Filter

    PX05-9-78 Purtrex Replacement Water Filter

    $5.79 MSRP: $8.04
    Save 28%
  • S1A-D Culligan Comparable Whole House Sediment Water Filter 2-Pack by Tier1
  • RS1SS OmniFilter Comparable Whole House Water Filter by Tier1
  • RS14-SS OmniFilter Whole House Water Filter
  • W20CLA American Plumber Comparable Whole House Water Filter by Tier1
  • SPC-25-1001 Hydronix Pleated Sediment Filter

    SPC-25-1001 Hydronix Pleated Sediment Water Filter

    $6.99 MSRP: $8.04
    Save 13%
  • SPC-25-1020 Hydronix Sediment Water Filter

    SPC-25-1020 Hydronix Pleated Sediment Water Filter

    $6.99 MSRP: $10.91
    Save 36%
  • Pentek CW-MF Whole House Water Filter Replacement Cartridge

    CW-MF Pentek Whole House Filter Replacement Cartridge

    $6.99 MSRP: $10.34
    Save 32%
  • Pentek P1 Polyproplyene Water Filter (10 x 2 1/2)
  • S1 Pentek Comparable Whole House 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
  • P1 Pentek Comparable Whole House Sediment Filter by Tier1 (2-Pack)
  • Hydronix SPC-25-1005 Pleated Water Filter

    SPC-25-1005 Hydronix Pleated Sediment Water Filter

    $7.99 MSRP: $9.19
    Save 13%
  • EP10-10 Tier1 Carbon Block Water Filter

    EP10-10 Tier1 Carbon Block Water Filter

    $7.99 MSRP: $10.34
    Save 23%
  • Pentek S1 Pleated Whole House Sediment Filter
  • RS1-SS OmniFilter Whole House Water Filter
  • EP5-10 Tier1 Carbon Block Water Filter

    EP5-10 Tier1 Carbon Block Water Filter

    $8.49 MSRP: $11.49
    Save 26%
  • 22105 Hydrologic SmallBoy Sediment Filter

    22105 Hydrologic SmallBoy Sediment Filter

    $8.99
    MSRP: $12.06
    Save 25%
  • FXUSC GE Comparable Whole House Sediment Water Filter 2-Pack by Tier1
  • FXWTC GE Comparable Whole House Water Filter 2-Pack by Tier1
  • Pentek ECP1-10 Replacement Water Filter Cartridge

    ECP1-10 Pentek Replacement Filter Cartridge

    $8.99 MSRP: $10.57
    Save 15%
  • CW-F-D Culligan Comparable Whole House Water Filter 2-Pack by Tier1
  • The Pentek C1 comparable Whole House Carbon 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%
  • Hytrex GX-50-9-78 Polypropylene Sediment Filter

    Hytrex GX-50-9-78 Polypropylene Sediment Filter

    $5.99
    MSRP: $7.12
    Save 16%
  • 3M Aqua-Pure AP-GRMB-05PP-10UB
  • PS1-10C Pentek Whole House Replacement Sediment Filter Cartridge
  • PX20-9-78 Purtrex Replacement Filter Cartridge

    PX20-9-78 Purtrex Water Filter Cartridge

    $3.99
    MSRP: $5.74
    Save 30%
  • PX30-9-78 Purtrex Replacement Filter Cartridge

    PX30-9-78 Purtrex Replacement Water Filter Cartridge

    $3.99
    MSRP: $6.89
    Save 42%
  • FPMB20-978 Watts Flo-Pro Replacement Filter Cartridge

    FPMB20-978 Watts Flo-Pro Replacement Water Filter

    $3.99
    MSRP: $5.16
    Save 23%
  • PX10-9-78 Purtrex Replacement Filter Cartridge

    PX10-9-78 Purtrex Replacement Water Filter

    $4.05
    MSRP: $8.04
    Save 50%
  • SBC-25-1001 Hydronix Sediment Water Filter Cartridge
  • SDC-25-1020 Hydronix Whole House Replacement Sediment Filter Cartridge
  • PX01-9-78 Purtrex Replacement Filter Cartridge

    PX01-9-78 Purtrex Replacement Filter Cartridge

    $4.99
    MSRP: $8.04
    Save 38%
  • PX50-9-78 Purtrex Replacement Filter Cartridge

    PX50-9-78 Purtrex Replacement Water Filter

    $4.99
    MSRP: $6.89
    Save 28%
  • FPMB5-978 Watts Flo-Pro Replacement Filter Cartridge

    FPMB5-978 Watts Flo-Pro Water Filter Cartridge

    $4.99
    MSRP: $5.16
    Save 3%

Items 1 to 48 of 92 total

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