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

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  • 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.

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36 Item(s)

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  • TIER1-CW10-934-2PK

    TIER1-CW10-934-2PK

    $7.99
  • CW-50 Pentek Comparable Whole House Sediment Water Filter by Tier1
  • RS2SS OmniFilter Comparable Whole House Water Filter by Tier1
  • RS14-SS OmniFilter Whole House Water Filter
  • 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

    CW-MF Comparable Sediment Whole House Water Filter

    $4.99 MSRP: $9.99
    Save 50%
  • 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
  • RWC-5 Culligan Comparable Whole House Water Filter by Tier1
  • CW-MF Pentek Comparable Whole House Sediment Water Filter by Tier1
  • AMERICAN-PLUMBER-W30W

    AMERICAN-PLUMBER-W30W

    $12.99
    MSRP: $13.79
    Save 6%
  • AMERICAN-PLUMBER-W50W

    AMERICAN-PLUMBER-W50W

    $13.99
  • AMERICAN-PLUMBER-W5W

    AMERICAN-PLUMBER-W5W

    $13.99
  • CW-F-D Culligan Level 3 Whole House Filter Replacement Cartridge (2-Pack)
  • FXUSC GE SmartWater Whole House Filter Replacement
  • WP-30 Pentek Whole House Filter Replacement Cartridge

    WP-30 Pentek Whole House Filter Replacement Cartridge

    $6.99
    MSRP: $8.15
    Save 14%
  • RS14DS

    RS14DS

    $6.99
    MSRP: $8.15
    Save 14%
  • RS2SS

    RS2SS

    $6.99
    MSRP: $8.04
    Save 13%
  • RS3-SS OmniFilter Whole House Filter Replacement Cartridge
  • RS7-SS OmniFilter Whole House Filter Replacement Cartridge
  • WHKF-WHSW Whirlpool Whole House Replacement Sediment Filter Cartridge (2-Pack)
  • RS2DS OmniFilter Whole House Replacement Filter Cartridge (2-Pack)
  • RS3DS/RS12-DS3-S06 OmniFilter Whole House Replacement Filter Cartridge (2-Pack)
  • RS4-DS OmniFilter Whole House Filter Replacement Cartridge (2-Pack)
  • CW-F Pentek String Wound Sediment Water Filter (9-7/8 in x 2-1/4 in)
  • CFS9112 Cuno Whole House Filter Replacement Cartridge

    CFS9112 Cuno Whole House Filter Replacement Cartridge

    $62.99
    MSRP: $71.29
    Save 12%

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