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 188 total

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  • Aqua-Pure 3M Easy Full Flow Drinking Water Filtration System CYST-FF
  • 155014-43 Pentek Comparable Whole House Sediment Water Filter by Tier1
  • AP110 3M Aqua-Pure Comparable Whole House Sediment Water Filter by Tier1
  • FXUSC GE Comparable Whole House Sediment Water Filter 2-Pack by Tier1
  • TIER1-AP85-934

    TIER1-AP85-934

    $18.99
  • CW-F-D Culligan Comparable Whole House Water Filter 2-Pack by Tier1
  • CW-MF Pentek Comparable Whole House Sediment Water Filter by Tier1
  • CW-50 Pentek Comparable Whole House Sediment Water Filter by Tier1
  • R50-BB Pentek Comparable Whole House Sediment Water Filter by Tier1
  • AP-GRMB-10PP-20UB Whole House Replacement Cartridge by 3M Aqua-Pure
  • AP-GRMB-20PP-20UB Whole House Water Filter Replacement Cartridge
  • AP-GRMB-50PP-20UB Whole House Water Filter Replacement Cartridge
  • PENTEK_WP5BB97P_FILTER

    PENTEK_WP5BB97P_FILTER

    $20.99
  • PX05-9-78 Purtrex Replacement Water Filter

    PX05-9-78 Purtrex Replacement Water Filter

    $5.99 MSRP: $9.99
    Save 40%
  • TIER1_EP5_10BB_FILTER

    TIER1_EP5_10BB_FILTER

    $22.99 MSRP: $26.34
    Save 13%
  • ECP5-BB Pentek Comparable Whole House Sediment Water Filter by Tier1 (25-Pack)
  • CW-MF Pentek Comparable Whole House Sediment Water Filter by Tier1 (25-Pack)
  • PENTEK_S1_BB_FILTER

    PENTEK_S1_BB_FILTER

    $14.99 MSRP: $17.99
    Save 17%
  • ECP5-BB Pentek Comparable Whole House Sediment Water Filter by Tier1
  • TIER1_CP5_934_FILTER

    TIER1_CP5_934_FILTER

    $12.99 MSRP: $17.99
    Save 28%
  • TIER1_EP5_20BB_FILTER

    TIER1_EP5_20BB_FILTER

    $47.99 MSRP: $69.77
    Save 31%
  • NFS-FXHTC

    NFS-FXHTC

    $23.99
  • NFS-AMERICAN-PLUMBER-WRC25HD
  • NFS-AMERICAN-PLUMBER-WGCHD

    NFS-AMERICAN-PLUMBER-WGCHD

    $23.99
  • NFS-CB6

    NFS-CB6

    $42.99 MSRP: $60.59
    Save 29%
  • NFS-KX-MATRIKX-1-HD10

    NFS-KX-MATRIKX-1-HD10

    $42.99 MSRP: $60.59
    Save 29%
  • NFS-PENTEK-FLOPLUS-10BB

    NFS-PENTEK-FLOPLUS-10BB

    $42.99 MSRP: $60.59
    Save 29%
  • NFS-KX-MATRIKX-1-20

    NFS-KX-MATRIKX-1-20

    $25.99 MSRP: $32.77
    Save 21%
  • NFS-KX-MATRIKX-CR1-20

    NFS-KX-MATRIKX-CR1-20

    $25.99 MSRP: $32.77
    Save 21%
  • NFS-PENTEK-CHLORPLUS-20

    NFS-PENTEK-CHLORPLUS-20

    $25.99 MSRP: $32.77
    Save 21%
  • NFS-PENTEK-FLOPLUS-20

    NFS-PENTEK-FLOPLUS-20

    $25.99 MSRP: $32.77
    Save 21%
  • NFS-KX-MATRIKX-1-HD20

    NFS-KX-MATRIKX-1-HD20

    $68.99 MSRP: $84.99
    Save 19%
  • NFS-KX-MATRIKX-5-HD20

    NFS-KX-MATRIKX-5-HD20

    $68.99 MSRP: $84.99
    Save 19%
  • NFS-PENTEK-FLOPLUS-20BB

    NFS-PENTEK-FLOPLUS-20BB

    $68.99 MSRP: $84.99
    Save 19%
  • NFS-HYDRONIX-SDC-25-0501

    NFS-HYDRONIX-SDC-25-0501

    $4.99 MSRP: $8.34
    Save 40%
  • NFS-HARMSCO-HB-10-5W

    NFS-HARMSCO-HB-10-5W

    $12.99 MSRP: $17.99
    Save 28%

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