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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 103 total

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  • AF-20-2015 Aries Comparable Sediment Water Filter by Tier1
  • PS5-10C Pentek Comparable Sediment Water Filter by Tier1
  • P-12 Under Sink Water Replacement Filter Cartridge by Tier1
  • RO5 Tier1 5-Stage Reverse Osmosis System

    RO5 Tier1 5-Stage Reverse Osmosis System

    $159.99
    MSRP: $249.99
    Save 36%
  • 155014-43 Pentek Comparable Whole House Sediment Water Filter by Tier1
  • AP110 Aquapure Comparable Whole House Sediment Water Filter by Tier1
  • W20CLA American Plumber Comparable Whole House Water Filter by Tier1
  • EPM-20 Pentek Comparable Whole House Water Filter by Tier1
  • EPM-20BB Pentek Comparable Whole House Water Filter by Tier1
  • RS1SS OmniFilter Comparable Whole House Water Filter by Tier1
  • RS6 OmniFilter Comparable Whole House Water Filter by Tier1
  • FXWTC GE Comparable Whole House Water Filter 2-Pack by Tier1
  • TIER1-DGD1-20BB Whole House Sediment Water Filter
  • R30-20BB Pentek Comparable Whole House Sediment Water Filter by Tier1
  • P5-10 Tier1 Sediment Water Filter (4-pack)
  • P5-10BB Tier1 Sediment Water Filter (4-pack)
  • P5-20BB Tier1 Whole House Sediment Water Filter (2-Pack)
  • R30BB Pentek Comparable Whole House Water Filter by Tier1 (2-Pack)
  • EP10-10 Tier1 Carbon Block Water Filter

    EP10-10 Tier1 Carbon Block Water Filter

    $7.99 MSRP: $10.34
    Save 23%
  • EP5-10 Tier1 Carbon Block Water Filter

    EP5-10 Tier1 Carbon Block Water Filter

    $8.49 MSRP: $11.49
    Save 26%
  • EPM-BB Pentek Comparable Carbon Whole House Water Filter
  • P1 Pentek 10 x 2.5-inch Whole House Sediment Water Filter Replacement
  • DGD-2501 Pentek Comparable Whole House Filter by Tier1
  • P5-10 Tier1 Sediment Water Filter

    P5-10 Tier1 Sediment Water Filter

    $3.99 MSRP: $10.34
    Save 61%
  • P5-10BB Tier1 Sediment Water Filter

    P5-10BB Tier1 Sediment Water Filter

    $9.99 MSRP: $24.64
    Save 59%
  • P5-20 Tier1 Sediment Water Filter

    P5-20 Tier1 Whole House Sediment Water Filter

    $4.99 MSRP: $9.19
    Save 46%
  • P5-20BB Tier1 Sediment Water Filter

    P5-20BB Tier1 Whole House Sediment Water Filter

    $12.97 MSRP: $25.76
    Save 50%
  • R30BB Pentek Comparable Whole House Water Filter by Tier1
  • The Pentek C1 comparable Whole House Carbon Water Filter by Tier1
  • EP5-10BB Tier1 Carbon Block Water Filter

    EP5-10BB Tier1 Carbon Block Water Filter

    $22.99 MSRP: $26.34
    Save 13%
  • EP5-20 Tier1 Carbon Block Water Filter

    EP5-20 Tier1 Carbon Block Water Filter

    $15.99 MSRP: $20.69
    Save 23%
  • P20 Pentek 10 x 2.5-inch Comparable Whole House Sediment Water Filter
  • SDC-45-1020 Hydronix Comparable Sediment Water Filter by Tier1

Items 1 to 48 of 103 total

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