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 257 total

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  • AF-10-2210 Aries Comparable Sediment Water Filter by Tier1

    AF-10-2210 Aries Comparable Sediment Water Filter by Tier1

    $36.99
    MSRP: $56.39
    Save 34%
  • 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
  • S1A-D Culligan Comparable Whole House Sediment Water Filter 2-Pack by Tier1
  • W20CLA American Plumber Comparable Whole House Water Filter by Tier1
  • RS1SS OmniFilter Comparable Whole House Water Filter by Tier1
  • RS2SS OmniFilter Comparable Whole House Water Filter by Tier1
  • R30-20BB Pentek Comparable Whole House Sediment Water Filter by Tier1
  • WFPF13003B DuPont Universal Whole House Filtration System
  • WFPF38001C DuPont Universal Valve-In-Head Whole House Water Filtration System
  • WFPFC8002 DuPont Universal Whole House Carbon Wrap Two-Phase Cartridge (2-pack)
  • WFPFC3002 DuPont Universal Whole House Pleated Poly Filter Cartridge (2-Pack)
  • ROR2000-S-05 OmniFilter Reverse Osmosis Pre Filter Replacement
  • EPM-BB Pentek Comparable Whole House Water Filter by Tier1 (6-Pack)
  • Aries AF-10-2115 KDF/Granular Activated Carbon

    Aries AF-10-2115 KDF/Granular Activated Carbon

    $39.99
    MSRP: $49.00
    Save 18%
  • Culligan R50_BBSA_D Sediment Whole House 6-Pack Water Filters
  • PENTEK_EP_20_FILTER

    PENTEK_EP_20_FILTER

    $17.99 MSRP: $20.00
    Save 10%
  • PENTEK_EP_BB_FILTER

    PENTEK_EP_BB_FILTER

    $27.99 MSRP: $32.32
    Save 13%
  • PENTEK_EPM_BB_FILTER

    PENTEK_EPM_BB_FILTER

    $26.99 MSRP: $34.49
    Save 22%
  • TIER1_EPM10_934_FILTER

    TIER1_EPM10_934_FILTER

    $17.99 MSRP: $30.99
    Save 42%
  • RS14SS_FILTER

    RS14SS_FILTER

    $5.99 MSRP: $9.34
    Save 36%
  • RS1SS_FILTER

    RS1SS_FILTER

    $7.99 MSRP: $11.34
    Save 30%
  • TIER1_EP5_20_FILTER

    TIER1_EP5_20_FILTER

    $15.99 MSRP: $20.69
    Save 23%
  • TO1SS_FILTER

    TO1SS_FILTER

    $11.99 MSRP: $15.99
    Save 25%
  • TO6_FILTER

    TO6_FILTER

    $23.99 MSRP: $24.14
    Save 1%
  • CW-MF Pentek Comparable Whole House Sediment Water Filter by Tier1 (4-Pack)
  • EPM-BB Pentek Comparable Whole House Water Filter by Tier1 (4-Pack)
  • EPM-BB Pentek Comparable Whole House Water Filter by Tier1 (25-Pack)
  • CW-MF Pentek Comparable Whole House Sediment Water Filter by Tier1 (25-Pack)
  • PENTEK_CBC_10_FILTER

    PENTEK_CBC_10_FILTER

    $16.92
  • PENTEK_S1_BB_FILTER

    PENTEK_S1_BB_FILTER

    $14.99 MSRP: $17.99
    Save 17%
  • TIER1_CP5_934_FILTER

    TIER1_CP5_934_FILTER

    $12.99 MSRP: $17.99
    Save 28%
  • TIER1_S20_20_FILTER

    TIER1_S20_20_FILTER

    $16.99 MSRP: $26.99
    Save 37%
  • Everpure EV9720-06 Comparable Food Service Replacement Filter by Tier1
  • Everpure EV9612-22 Comparable Food Service Replacement Filter by Tier1
  • Everpure EV9612-56 Comparable Food Service Replacement Filter by Tier1
  • NFS-AMERICAN-PLUMBER-W30PEHD
  • NFS-CRYSTAL-QUEST-CQE-RC-04033

    NFS-CRYSTAL-QUEST-CQE-RC-04033

    $12.99 MSRP: $17.99
    Save 28%
  • NFS-HARMSCO-HB-10-5W

    NFS-HARMSCO-HB-10-5W

    $12.99 MSRP: $17.99
    Save 28%
  • NFS-HYDRONIX-SPC-45-1005

    NFS-HYDRONIX-SPC-45-1005

    $12.99 MSRP: $17.99
    Save 28%
  • NFS-HYDRONIX-SPC-45-1010

    NFS-HYDRONIX-SPC-45-1010

    $12.99 MSRP: $17.99
    Save 28%
  • NFS-OMNIFILTER-RS15

    NFS-OMNIFILTER-RS15

    $12.99 MSRP: $17.99
    Save 28%
  • NFS-PENTEK-ECP50-BB

    NFS-PENTEK-ECP50-BB

    $12.99 MSRP: $17.99
    Save 28%
  • NFS-TO6

    NFS-TO6

    $12.99 MSRP: $17.99
    Save 28%

Items 1 to 48 of 257 total

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