Discount Water Filters and Air Filters at Discount Filter Store.com

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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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Items 1 to 48 of 198 total

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  • PS5-10C Pentek Comparable Sediment Water Filter by Tier1

    PS5-10C Pentek Comparable Sediment Water Filter by Tier1

    $3.99
    MSRP: $6.99
    Save 43%
  • 155014-43 Pentek Comparable Whole House Sediment Water Filter by Tier1
  • PD-25-934 Pentek 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%
  • P5-478 Pentek Sediment Water Filter

    P5-478 Pentek Comparable Sediment Water Filter by Tier1

    $3.99 MSRP: $7.99
    Save 50%
  • PS5-10C Pentek Comparable Sediment Water Filter by Tier1

    PS5-10C Pentek Comparable Sediment Water Filter by Tier1

    $3.99 MSRP: $6.99
    Save 43%
  • W25P American Plumber Comparable Whole House Sediment Water Filter by Tier1
  • PD-1-934-Pentek Comparable Whole House Sediment Water Filter by Tier1
  • PS1-10C Pentek Comparable Whole House Sediment Water Filter by Tier1
  • PX01-9-78 Purtrex Comparable Whole House Sediment Water Filter by Tier1
  • AP-GRMB-20PP-10UB Aqua-Pure Comparable Whole House Sediment Water Filter by Tier1
  • SDC-25-1020 Hydronix Comparable Whole House Sediment Water Filter by Tier1
  • GX20-9-78 Hytrex Comparable Whole House Sediment Water Filter by Tier1
  • P25 Pentek Comparable Whole House Sediment Filter by Tier1
  • PS20-10C Pentek Comparable Whole House Sediment Water Filter by Tier1
  • PX20-9-78 Purtrex Comparable Whole House Sediment Water Filter by Tier1
  • CW-MF Pentek Comparable Whole House Sediment Water Filter by Tier1
  • CW-50 Pentek Comparable Whole House Sediment Water Filter by Tier1
  • RS2SS OmniFilter Comparable Whole House Water Filter by Tier1
  • P5-20 Tier1 Sediment Water Filter

    P5-20 Tier1 Whole House Sediment Water Filter

    $4.99 MSRP: $9.19
    Save 46%
  • P20 Pentek 10 x 2.5-inch Comparable Whole House Sediment Water Filter
  • SDC-25-0501 Hydronix Comparable Whole House Sediment Water Filter by Tier1
  • W30W American Plumber Comparable Whole House Sediment Water Filter by Tier1
  • W50W American Plumber Comparable Whole House Sediment Water Filter by Tier1
  • SWC-25-1030 Hydronix Comparable Whole House Sediment Water Filter by Tier1
  • SWC-25-1050-Hydronix Comparable Whole House Sediment Water Filter by Tier1
  • SWC-25-10100 Hydronix Comparable Whole House Sediment Water Filter by Tier1
  • CW-50 Pentek Comparable Whole House Sediment Water Filter by Tier1
  • CW-MF Pentek Comparable Whole House Sediment Water Filter by Tier1
  • WP-30 Pentek Comparable Whole House Sediment Filter by Tier1
  • RS7-SS OmniFilter Comparable Whole House Sediment Water Filter by Tier1
  • AP124 3M Aqua-Pure Comparable Whole House Filter Replacement Cartridge by Tier1
  • WP-5 Pentek Comparable Replacement Filter Cartridge by Tier1
  • PX05-9-78 Purtrex Replacement Water Filter

    PX05-9-78 Purtrex Replacement Water Filter

    $5.99 MSRP: $9.99
    Save 40%
  • RS14-SS OmniFilter Whole House Water Filter
  • P1-20 Pentek Comparable Sediment Water Filter by Tier1

    P1-20 Pentek Comparable Sediment Water Filter by Tier1

    $5.99 MSRP: $10.99
    Save 45%
  • AQUA-PURE-AP124-2C Polypropylene Sediment Water Filter by Tier1
  • SDC-25-2001 Hydronix Comparable Sediment Water Filter by Tier1
  • SWC-25-2001 Hydronix Comparable Whole House Sediment Water Filter by Tier 1
  • PD-1-20 Pentek Comparable Sediment Water Filter by Tier1

    PD-1-20 Pentek Comparable Sediment Water Filter by Tier1

    $5.99 MSRP: $10.99
    Save 45%
  • PS1-20C Pentek Comparable Whole House Sediment Water Filter by Tier1
  • PX01-20 Purtrex Comparable Whole House Sediment Water Filter by Tier1
  • AP-GRMB-50PP-20UB 3M Aqua-Pure Comparable Whole House Sediment Filter by Tier1
  • SDC-25-2050 Hydronix Comparable Whole House Sediment Water Filter by Tier1
  • GX50-20 Hytrex Comparable Whole House Sediment Water Filter by Tier1
  • PD-50-20 Pentek Comparable Whole House Sediment Water Filter by Tier1
  • PX75-20 Purtrex Comparable Whole House Sediment Water Filter by Tier1

Items 1 to 48 of 198 total

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