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 54 total

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  • 155014-43 Pentek 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
  • TIER1_P5_20_FILTER

    TIER1_P5_20_FILTER

    $4.99 MSRP: $9.19
    Save 46%
  • NFS-HYDRONIX-SDC-25-0501

    NFS-HYDRONIX-SDC-25-0501

    $4.99 MSRP: $8.34
    Save 40%
  • NFS-AMERICAN-PLUMBER-W30W

    NFS-AMERICAN-PLUMBER-W30W

    $4.99 MSRP: $9.99
    Save 50%
  • NFS-AMERICAN-PLUMBER-W50W

    NFS-AMERICAN-PLUMBER-W50W

    $4.99 MSRP: $9.99
    Save 50%
  • NFS-HYDRONIX-SWC-25-1030

    NFS-HYDRONIX-SWC-25-1030

    $4.99 MSRP: $9.99
    Save 50%
  • NFS-HYDRONIX-SWC-25-1050

    NFS-HYDRONIX-SWC-25-1050

    $4.99 MSRP: $9.99
    Save 50%
  • NFS-HYDRONIX-SWC-25-10100

    NFS-HYDRONIX-SWC-25-10100

    $4.99 MSRP: $9.99
    Save 50%
  • NFS-PENTEK-CW-50

    NFS-PENTEK-CW-50

    $4.99 MSRP: $9.99
    Save 50%
  • NFS-PENTEK-CW-MF

    NFS-PENTEK-CW-MF

    $4.99 MSRP: $9.99
    Save 50%
  • NFS-PENTEK-WP-30

    NFS-PENTEK-WP-30

    $4.99 MSRP: $9.99
    Save 50%
  • NFS-RS7SS

    NFS-RS7SS

    $4.99 MSRP: $9.99
    Save 50%
  • RWC-5 Culligan Comparable Whole House Water Filter by Tier1
  • S1A-D Culligan Comparable Whole House Sediment Water Filter 2-Pack by Tier1
  • PX05-9-78 Purtrex Replacement Water Filter

    PX05-9-78 Purtrex Replacement Water Filter

    $5.99 MSRP: $9.99
    Save 40%
  • KX Matrikx CTO2-12 Reverse Osmosis Carbon Block Replacement Filter
  • SB-2R Water Bottle Replacement Filters (2-Pack)

    SB-2R Water Bottle Replacement Filters (2-Pack)

    $7.99
    MSRP: $11.49
    Save 30%
  • AP110 3M Aqua-Pure Comparable Whole House Sediment Water Filter by Tier1
  • CW-F-D Culligan Comparable Whole House Water Filter 2-Pack by Tier1
  • AP420 3M Aqua-Pure Comparable Whole House Filter Replacement Cartridge by Tier1
  • TIER1_EP5_10_FILTER

    TIER1_EP5_10_FILTER

    $8.49 MSRP: $11.49
    Save 26%
  • FXUSC GE Comparable Whole House Sediment Water Filter 2-Pack by Tier1
  • OR-38 Culligan Undersink and RV Filter O-Ring

    OR-38 Culligan Undersink and RV Filter O-Ring

    $4.99
    MSRP: $9.19
    Save 46%
  • EP-5 Pentek Replacement Filter Cartridge

    EP-5 Pentek Replacement Filter Cartridge

    $7.19
    MSRP: $11.99
    Save 40%
  • P10-5 Tier1 Polypropylene Sediment Filter

    P10-5 Tier1 Polypropylene Sediment Filter

    $3.99
    MSRP: $5.74
    Save 30%
  • P1-5 Tier1 Sediment Filter Cartridge

    P1-5 Tier1 Sediment Filter Cartridge

    $4.99
    MSRP: $8.34
    Save 40%
  • NFS-HYDRONIX-SDC-25-2005

    NFS-HYDRONIX-SDC-25-2005

    $4.99 MSRP: $9.19
    Save 46%
  • HDG-SED-ACS Hydronix Replacement Filter Cartridge
  • SDC-25-1005 Hydronix Whole House Replacement Sediment Filter Cartridge
  • PS20-10C Pentek Whole House Replacement Sediment Filter Cartridge
  • PR-1 Culligan Pitcher Replacement Cartridge

    PR-1 Culligan Water Filter Pitcher Replacement Cartridge

    $6.99
    MSRP: $12.52
    Save 44%
  • PD-1-934 Pentek Whole House Replacement Sediment Filter Cartridge
  • PS1-10C Pentek Whole House Replacement Sediment Filter Cartridge
  • WP-5 Pentek Replacement Filter Cartridge

    WP-5 Pentek Replacement Filter Cartridge

    $6.99
    MSRP: $8.84
    Save 21%
  • PENTEK_P25_FILTER

    PENTEK_P25_FILTER

    $6.99 MSRP: $9.19
    Save 24%
  • PENTEK_PS5_10C_FILTER

    PENTEK_PS5_10C_FILTER

    $6.99 MSRP: $10.34
    Save 32%
  • P5-D Culligan Comparable Whole House Filter Replacement Cartridge by Tier1 (2-Pack)
  • S1A Culligan Level 2 Whole House Filter Replacement Cartridge (2-Pack)
  • ECP50-10 Pentek Replacement Filter Cartridge

    ECP50-10 Pentek Replacement Filter Cartridge

    $7.99
    MSRP: $8.15
    Save 2%
  • PENTEK_ECP20_10_FILTER

    PENTEK_ECP20_10_FILTER

    $7.99 MSRP: $9.42
    Save 15%
  • NFS-HAC-10-LR-W

    NFS-HAC-10-LR-W

    $8.49 MSRP: $11.49
    Save 26%
  • PENTEK_PS5_20C_FILTER

    PENTEK_PS5_20C_FILTER

    $8.99 MSRP: $10.57
    Save 15%
  • PENTEK-PD-1-20

    PENTEK-PD-1-20

    $9.99
    MSRP: $11.72
    Save 15%

Items 1 to 48 of 54 total

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