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When we protect your filter purchase with our No Worries Guarantee, we mean it!

No Worries...
  • Your filters are guaranteed to be the right fit!
  • Our products are price match guaranteed!
  • Our customer service team is guaranteed to answer your call!
  • You’re guaranteed to find expert help!

Learn more about our No Worries Guarantee

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 82 total

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  • FXWTC GE Comparable Whole House Water Filter 2-Pack by Tier1
  • AWP117 Viqua Carbon Block Filter for S2Q-DWS UV System

    AWP117 Viqua Carbon Block Filter for S2Q-DWS UV System

    $10.99
    MSRP: $15.99
    Save 31%
  • D-25 Culligan Under Sink Water Filter

    D-25 Culligan Under Sink Water Filter

    $11.99
    MSRP: $16.99
    Save 29%
  • Pentek EP-10 Replacement Water Filter Cartridge

    Pentek EP-10 Filter Cartridge Replacement

    $11.99 MSRP: $15.34
    Save 22%
  • TO1SS OmniFilter Whole House Water Filter
  • 22160 Triton Replacement Sediment Filter Cartridge by Hydrologic
  • WFPFC3002 DuPont Universal Whole House Pleated Poly Filter Cartridge (2-Pack)
  • CBC-10 Pentek Replacement Water Filter

    Pentek CBC-10 Water Filter Replacement Cartridge

    $14.99 MSRP: $16.71
    Save 10%
  • Pentek S1-BB Replacement Water Filter Cartridge

    Pentek S1-BB Water Filter Cartridge Replacement

    $14.99 MSRP: $17.99
    Save 17%
  • Hydronix HF2-10CLWH12 Clear 10 inch Filter Housing
  • EP5-20 Tier1 Carbon Block Water Filter

    EP5-20 Tier1 Carbon Block Water Filter

    $15.99 MSRP: $20.69
    Save 23%
  • AF-10-2010 Aries GAC/KDF Water Filter Cartridge

    AF-10-2010 Aries GAC/KDF Water Filter Cartridge

    $16.99
    MSRP: $22.99
    Save 26%
  • P5-10 Tier1 Sediment Water Filter (4-pack)
  • 22110 Hydrologic SmallBoy Replacement Carbon Filter - Green
  • K5520SS Omnipure Inline GAC Filter Cartridge

    K5520SS Omnipure Inline GAC Water Filter Cartridge

    $19.05
    MSRP: $27.59
    Save 31%
  • Pentek CHLORPLUS-10 Whole House Water Filter Replacement Cartridge
  • Pentek WS-10 Water Softening Water Filter

    Pentek WS-10 Water Softening Filter

    $19.99 MSRP: $24.83
    Save 19%
  • Pentek CFB-PB10 Lead & Cyst Carbon Filter

    Pentek CFB-PB10 Lead & Cyst Carbon Filter

    $13.99
    MSRP: $17.12
    Save 18%
  • AP111 3M Aqua-Pure Whole House Filter Replacement Cartridge
  • Whirlpool WHKF-GAC Undersink Replacement Water Filter Cartridge
  • WHKF-WHPL Whirlpool Whole House Replacement Sediment Filter Cartridge (2-Pack)
  • WHKF-WHSW Whirlpool Whole House Replacement Sediment Filter Cartridge (2-Pack)
  • SWC-25-1010 Hydronix String Wound Sediment Water Filter

    SWC-25-1010 Hydronix String Wound Sediment Water Filter

    $10.99
    MSRP: $14.34
    Save 23%
  • Q5505 Omnipure Water Filter

    Q5505 Omnipure Water Filter

    $11.49
    MSRP: $15.51
    Save 26%
  • W20CLA American Plumber Whole House Sediment Filter Cartridge (2-Pack)
  • 3M Aqua-Pure AP110 Whole House Water Filter Cartridge
  • NCP-10 Culligan Whole House Filter Replacement Cartridge
  • P1-D Culligan Level 4 Whole House Filter Replacement Cartridge (2-Pack)
  • P5-D Culligan Level 4 Whole House Filter Replacement Cartridge (2-Pack)
  • 3WH-STDCW-F02 Filtrete Replacement Filter Cartridge (2-Pack)
  • TS-101L Pentek Lime/Scale Inline Filter

    TS-101L Pentek Lime/Scale Inline Filter

    $11.99
    MSRP: $15.28
    Save 22%
  • MAXETW-975 Watts C-MAX Replacement Filter Cartridge
  • HDG-P117 Hydronix Replacement Water Filter
  • W25P American Plumber Whole House Sediment Filter Cartridge (2-Pack)
  • W30W American Plumber Whole House Sediment Water Filter Cartridge (2-Pack)
  • W5P American Plumber Whole House Sediment Filter Cartridge (2-Pack)
  • 3M Aqua-Pure AP124 Whole House Water Filter Cartridge
  • RWC-5 Culligan Level 1 Undersink Filter Replacement Cartridge
  • GAC-10 Pentek Undersink Filter Replacement Cartridge

    GAC-10 Pentek Undersink Filter Replacement Cartridge

    $12.99
    MSRP: $17.99
    Save 28%
  • MATRIKX-CTO2-10 KX Technologies MatrikX Undersink Filter Replacement Cartridge
  • PLEKX-10-10 KX Technologies PlekX Whole House Filter Replacement Cartridge
  • C1 Pentek Undersink Filter Replacement Cartridge

    Pentek C1 Undersink Water Filter Replacement Cartridge

    $12.99
    MSRP: $15.34
    Save 15%
  • C8 Pentek Whole House Replacement Filter Cartridge
  • CEP-10E Pentek Replacement Filter Cartridge

    CEP-10E Pentek Replacement Filter Cartridge

    $12.99
    MSRP: $16.34
    Save 21%
  • Q5405 Omnipure Q-Series Sediment Water Filter

    Q5405 Omnipure Q-Series Sediment Water Filter

    $12.99
    MSRP: $16.04
    Save 19%
  • W50W American Plumber Whole House Sediment Filter Cartridge (2-Pack)
  • W5W American Plumber Whole House Sediment Filter Cartridge (2-Pack)
  • D-10-TWIN Culligan Level 1 Undersink Filter Replacement Cartridge (2-Pack)

Items 1 to 48 of 82 total

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