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 286 total

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  • TO1SS OmniFilter Whole House Water Filter
  • 36005 Hydrologic SmallBoy De-Chlorinator and Sediment Filter System With Upgraded KDF
  • SPC-25-2005 Hydronix Pleated Sediment Water Filter

    SPC-25-2005 Hydronix Pleated Sediment Water Filter

    $14.99
    MSRP: $20.99
    Save 29%
  • SWC-45-2005 Hydronix String-Wound Sediment Water Filter
  • 31050 Hydrologic TallBoy Sediment Filter & Dechlorinator

    31050 Hydrologic TallBoy Sediment Filter & Dechlorinator

    $153.99
    MSRP: $183.95
    Save 16%
  • P-12 Under Sink Water Replacement Filter Cartridge by Tier1
  • 155014-43 Pentek Comparable Whole House Sediment Water Filter by Tier1
  • AP110 Aquapure Comparable Whole House Sediment Water Filter by Tier1
  • C1-20 Pentek Comparable Whole House Carbon Water Filter by Tier1
  • FXWTC GE Comparable Whole House Water Filter 2-Pack by Tier1
  • RS2SS OmniFilter Comparable Whole House Water Filter by Tier1
  • WFPF38001C DuPont Universal Valve-In-Head Whole House Water Filtration System
  • C2-02 Viqua Carbon Whole House Filter

    C2-02 Viqua Carbon Whole House Filter

    $49.99
    MSRP: $89.00
    Save 44%
  • CMB-510-HF Viqua Sediment Whole House Filter

    CMB-510-HF Viqua Sediment Whole House Filter

    $16.99
    MSRP: $19.34
    Save 12%
  • CMB-520-HF Viqua Sediment Whole House Filter

    CMB-520-HF Viqua Sediment Whole House Filter

    $27.99
    MSRP: $39.00
    Save 28%
  • C1-20 Pentek Comparable Whole House Water Filter by Tier1 (2-Pack)
  • C1-20 Pentek Comparable Whole House Water Filter by Tier1 (4-Pack)
  • KX Matrikx CTO2-12 Reverse Osmosis Carbon Block Replacement Filter
  • Hydronix SDC-45-2005 Whole House Sediment Filter Cartridge
  • Hydronix SPC-25-1005 Pleated Water Filter

    SPC-25-1005 Hydronix Pleated Sediment Water Filter

    $7.99 MSRP: $9.19
    Save 13%
  • Hydronix SPC-45-1005 Whole House Sediment Filter Cartridge
  • DGD-5005-20 Pentek Whole House Water Filter

    DGD-5005-20 Pentek Whole House Filter Replacement Cartridge

    $23.99 MSRP: $25.76
    Save 7%
  • DGD-5005 Pentek Whole House Filter Cartridge
  • ECP5-20BB Pentek Whole House Filter Cartridge
  • ECP5-BB Pentek Whole House Water Filter
  • Pentek EP-10 Replacement Water Filter Cartridge

    Pentek EP-10 Filter Cartridge Replacement

    $11.99 MSRP: $15.34
    Save 22%
  • Pentek EP-20 Replacement Water Filter Cartridge

    Pentek EP-20 Water Filter Cartridge Replacements

    $17.99 MSRP: $20.00
    Save 10%
  • EP-20BB Pentek Replacement Water Filter
  • EP-BB Pentek Replacement Filter Cartridge

    EP-BB Pentek Replacement Filter Cartridge

    $27.99 MSRP: $32.32
    Save 13%
  • C1-20 Pentek Comparable Whole House Carbon Water Filter by Tier1
  • EP5-10 Tier1 Carbon Block Water Filter

    EP5-10 Tier1 Carbon Block Water Filter

    $8.49 MSRP: $11.49
    Save 26%
  • P5-10 Tier1 Sediment Water Filter

    P5-10 Tier1 Sediment Water Filter

    $3.99 MSRP: $10.34
    Save 61%
  • P5-10BB Tier1 Sediment Water Filter

    P5-10BB Tier1 Sediment Water Filter

    $11.99 MSRP: $24.64
    Save 51%
  • P5-20 Tier1 Sediment Water Filter

    P5-20 Tier1 Whole House Sediment Water Filter

    $4.99 MSRP: $9.19
    Save 46%
  • P5-20BB Tier1 Sediment Water Filter

    P5-20BB Tier1 Whole House Sediment Water Filter

    $14.99 MSRP: $25.76
    Save 42%
  • Pentek WP5BB97P Replacement Water Filter Cartridge
  • PX05-9-78 Purtrex Replacement Water Filter

    PX05-9-78 Purtrex Replacement Water Filter

    $5.99 MSRP: $9.99
    Save 40%
  • The Pentek C1 comparable Whole House Carbon Water Filter by Tier1

    Pentek C1 Comparable Carbon Block Water Filter by Tier1

    $10.99 MSRP: $19.99
    Save 45%
  • EP5-10BB Tier1 Carbon Block Water Filter

    EP5-10BB Tier1 Carbon Block Water Filter

    $22.99 MSRP: $26.34
    Save 13%
  • EP5-20 Tier1 Carbon Block Water Filter

    EP5-20 Tier1 Carbon Block Water Filter

    $15.99 MSRP: $20.69
    Save 23%
  • P5-478 Pentek Sediment Water Filter

    P5-478 Pentek Comparable Sediment Water Filter by Tier1

    $3.99 MSRP: $7.99
    Save 50%
  • TO6-SS2-S06 OmniFilter Whole House Water Filter

Items 1 to 48 of 286 total

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