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No Worries...
  • Your filters are guaranteed to be the right fit!
  • Our products are price match guaranteed!
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  • You’re guaranteed to find expert help!

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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.

Items 1 to 48 of 61 total

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  • 3M Aqua-Pure AP815 Whole House Water Filter
  • 3M Aqua-Pure AP815-2 Whole House Water Filter
  • 3M Aqua-Pure AP917R Water Filter Cartridge
  • C-CS-FF 3M Aqua-Pure Undersink Water Filter

    C-CS-FF 3M Aqua-Pure Undersink Water Filter Cartridge

    $43.99
    MSRP: $48.06
    Save 8%
  • 4CB5 Everpure Replacement Filter Cartridge

    4CB5 Everpure Replacement Filter Cartridge

    $49.99
    MSRP: $59.79
    Save 16%
  • 7CB5 Everpure Replacement Filter Cartridge

    7CB5 Everpure Replacement Filter Cartridge

    $62.99
    MSRP: $75.89
    Save 17%
  • 7CB5-S Everpure Replacement Filter Cartridge

    7CB5-S Everpure Replacement Filter Cartridge

    $75.99
    MSRP: $86.24
    Save 12%
  • DEV9108-17 Everpure CostGuard CG5-10S Undersink Filter Replacement Cartridge
  • EFS8002 Everpure Replacement Filter Cartridge

    EFS8002 Everpure Replacement Filter Cartridge

    $48.99
    MSRP: $58.64
    Save 16%
  • EFS8002-S Everpure Replacement Filter Cartridge

    EFS8002-S Everpure Replacement Filter Cartridge

    $49.99
    MSRP: $59.79
    Save 16%
  • EV4339-12 Everpure Claris L Replacement Hot Water Filter Cartridge

    EV4339-12 Everpure Claris L Hot Water Filter Cartridge

    $195.99
    MSRP: $205.84
    Save 5%
  • EV9617-21 Everpure 4CB5-S Replacement Filter Cartridge

    EV9617-21 Everpure 4CB5-S Replacement Filter Cartridge

    $68.99
    MSRP: $80.71
    Save 15%
  • EV9617-22 Everpure 2CB5-S Replacement Filter Cartridge

    EV9617-22 Everpure 2CB5-S Replacement Filter Cartridge

    $46.65
    MSRP: $65.54
    Save 29%
  • EV9617-36 Everpure 4CB5-K Replacement Filter Cartridge

    EV9617-36 Everpure 4CB5-K Replacement Filter Cartridge

    $69.00
    MSRP: $81.65
    Save 15%
  • EV9797-21 Everpure Commercial Filter System

    EV9797-21 Everpure Commercial Filter System

    $599.99
    MSRP: $692.29
    Save 13%
  • 3US-AF01 Filtrete Undersink Filter Replacement Cartridge
  • CB-25-1005 Hydronix Replacement Filter Cartridge
  • K00174 Manitowoc Tri-Liminator Replacement Ice Maker Filter Cartridge
  • PENTEK-GS-215-CB5-B

    PENTEK-GS-215-CB5-B

    $24.69
    MSRP: $30.69
    Save 20%
  • PENTEK-QC10-EPR

    PENTEK-QC10-EPR

    $23.99
    MSRP: $27.70
    Save 13%
  • 47-55708G2 Water Factory Systems Replacement Filter Cartridge
  • WATTS-MAXETW-975

    WATTS-MAXETW-975

    $11.99
    MSRP: $13.79
    Save 13%
  • WATTS-MAXETW-FF20

    WATTS-MAXETW-FF20

    $68.99
    MSRP: $74.74
    Save 8%
  • 41400011 Hydrotech Replacement Filter Cartridge

    41400011 Hydrotech Replacement Filter Cartridge

    $15.99
    MSRP: $19.54
    Save 18%
  • PLEKX-10-10 KX Technologies PlekX Whole House Filter Replacement Cartridge
  • 3038333 Merlin Reverse Osmosis Carbon Pre Filter

    3038333 Merlin Reverse Osmosis Carbon Pre Filter

    $26.99
    MSRP: $28.74
    Save 6%
  • PENTEK-CEP-10E

    PENTEK-CEP-10E

    $12.99
  • PENTEK-CFB-PLUS10

    PENTEK-CFB-PLUS10

    $9.99
    MSRP: $14.13
    Save 29%
  • PENTEK-CFB-PLUS20

    PENTEK-CFB-PLUS20

    $16.99
    MSRP: $21.26
    Save 20%
  • PENTEK-CFB-PLUS20BB

    PENTEK-CFB-PLUS20BB

    $42.99
    MSRP: $52.89
    Save 19%
  • PENTEK-EP-30

    PENTEK-EP-30

    $37.99
    MSRP: $46.10
    Save 18%
  • 41400076 Hydrotech Dual Purpose Water Filter41400076 Hydrotech Dual Purpose Water Filter

    41400076 Hydrotech Dual Purpose Water Filter

    $17.99
    MSRP: $19.54
    Save 8%
  • E5722-P Omnipure Carbon Block Water Filter

    E5722-P Omnipure Carbon Block Water Filter

    $33.99
    MSRP: $49.99
    Save 32%
  • CQE-RC-04014 Crystal Quest Carbon Block Water Filter Cartridge
  • CQE-RC-04036 Crystal Quest Carbon Block Water Filter Cartridge
  • KDF55-10BB Tier1 Water Filter
  • P1020266 Culligan Carbon Block Water Filter
  • RC-5 Rainshow’r Replacement Water Filter

    RC-5 Rainshow’r Replacement Water Filter

    $51.99
    MSRP: $65.99
    Save 21%
  • BT-100 Rainshow’r Breakthrough Drinking Water Filtration System
  • HAC-10-LR-W Harmsco Chlorine and Lead Removal Whole House Filter
  • 3M Aqua-Pure AP904 Carbon Water Filter

    AP904 3M Aqua-Pure Carbon Water Filter

    $278.99
    MSRP: $330.00
    Save 15%
  • 3M Aqua-Pure AP917HD Whole House Water Filter Cartridge

    AP917HD 3M Aqua-Pure Whole House Water Filter Replacement

    $148.99
    MSRP: $173.64
    Save 14%
  • 3M Aqua-Pure AP917HD-S Water Filter Cartridge

    AP917HD-S 3M Aqua-Pure Water Filter Cartridge

    $182.99
    MSRP: $217.99
    Save 16%
  • PENTEK-EP-5

    PENTEK-EP-5

    $6.99
  • 36005 Hydrologic SmallBoy De-Chlorinator and Sediment Filter System With Upgraded KDF

Items 1 to 48 of 61 total

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