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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!
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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 471 total

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  • PX01-30 Purtrex Sediment Filter Cartridge

    PX01-30 Purtrex Sediment Filter Cartridge

    $10.49
    MSRP: $14.36
    Save 27%
  • 67001 Aquamira Water Bottle Replacement Filter Cartridge
  • AP111 3M Aqua-Pure Whole House Filter Replacement Cartridge
  • KO100G2S Pentek Polypropylene Bag Filter

    KO100G2S Pentek Polypropylene Filter Bag

    $10.99
    MSRP: $12.98
    Save 15%
  • 6570090 Tier1 Plastic Tank Ball Valve
  • AICRO-JGK Watts Inline Filter Cartridge
  • R2-2PK Instapure Essentials Faucet Filter Replacement Cartridge (2-Pack)
  • 32-250-125-050 KX Technologies Replacement Filter Cartridge
  • S7025 Microline Replacement Filter Cartridge

    S7025 Microline Replacement Filter Cartridge

    $10.99
    MSRP: $14.94
    Save 26%
  • CL10ROT33-B Omnipure Inline Filter

    CL10ROT33-B Omnipure Inline Filter

    $10.99
    MSRP: $13.79
    Save 20%
  • ELF-DK7 Omnipure Filter Head

    ELF-DK7 Omnipure Filter Head

    $10.99
    MSRP: $16.09
    Save 32%
  • K2333-JJ Omnipure Inline Filter

    K2333-JJ Omnipure Inline Filter

    $10.99
    MSRP: $13.79
    Save 20%
  • SPC-45-1010 Hydronix Pleated Sediment Water Filter

    SPC-45-1010 Hydronix Pleated Sediment Water Filter

    $10.99
    MSRP: $18.39
    Save 40%
  • SPC-25-2020 Hydronix Pleated Sediment Water Filter

    SPC-25-2020 Hydronix Pleated Sediment Water Filter

    $10.99
    MSRP: $16.09
    Save 32%
  • SPC-25-2005 Hydronix Pleated Sediment Water Filter

    SPC-25-2005 Hydronix Pleated Sediment Water Filter

    $10.99
    MSRP: $16.09
    Save 32%
  • CL10ROT33-A Omnipure GAC Inline Water Filter

    CL10ROT33-A Omnipure GAC Inline Water Filter

    $10.99
    MSRP: $14.94
    Save 26%
  • SPC-25-2030 Hydronix Pleated Sediment Water Filter

    SPC-25-2030 Hydronix Pleated Sediment Water Filter

    $10.99
    MSRP: $12.64
    Save 13%
  • 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%
  • Q5328 Omnipure Water Filter

    Q5328 Omnipure Water Filter

    $10.99
    MSRP: $14.94
    Save 26%
  • 00401538 Culligan String Wound Sediment Filter
  • AP-GRMB-01PP-20UB Whole House Replacement Water Filter by 3M Aqua-Pure
  • 67003 Aquamira Frontier Sport Water Bottle Replacement Filter Cartridge - front

    67003 Aquamira Frontier Sport Water Bottle Filter

    $11.05
    MSRP: $17.19
    Save 36%
  • E5320 Omnipure Replacement Filter Cartridge

    E5320 Omnipure Replacement Filter Cartridge

    $11.05
    MSRP: $17.24
    Save 36%
  • ELF-NV-HEAD-DK7-P6 Omnipure Inline Filter Head

    ELF-NV-HEAD-DK7-P6 Omnipure Inline Water Filter Head

    $11.05
    MSRP: $17.24
    Save 36%
  • K5528-BB Omnipure Carbon Inline Water Filter

    K5528-BB Omnipure Carbon Inline Water Filter

    $11.05
    MSRP: $16.09
    Save 31%
  • PENTEK-SLIM-PR10-JG38 Pentek Undersink Filter 10 inch Housing
  • 153017 Pentek Slim Line Filter Housing Sump - Blue

    153017 Pentek Slim Line Filter Housing Sump - Blue

    $11.29
    MSRP: $15.28
    Save 26%
  • SGS-BLK Built NY Bottle-Slinger Neoprene Insulating Tote for 24-27 ounce bottles - Black
  • Q5505 Omnipure Water Filter

    Q5505 Omnipure Water Filter

    $11.49
    MSRP: $15.51
    Save 26%
  • 1-50201-C Seychelle Pure Water Straw with Regular Filter
  • W20CLA American Plumber Whole House Sediment Filter Cartridge (2-Pack)
  • 67005 Aquamira Frontier Emergency Water Filter System

    67005 Aquamira Frontier Emergency Water Filter System

    $11.99
    MSRP: $13.74
    Save 13%
  • 3M Aqua-Pure AP110 Whole House Water Filter Cartridge
  • BOTTLE-BLUE-FILTER-INSIDE Brita 20-Ounce Water Purifier Bottle - Blue
  • CRF-950Z PUR Pitcher Replacement Cartridge

    CRF-950Z PUR Replacement Water Filter Pitcher

    $11.99
    MSRP: $16.09
    Save 25%
  • IC-750 Culligan Inline Filter
  • 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%
  • SC-AUTO SteriPEN Portable UV System Car Charging Adapter
  • MAXETW-975 Watts C-MAX Replacement Filter Cartridge
  • WHKF-IMTO Whirlpool Inline Filter

    WHKF-IMTO Whirlpool Inline Filter

    $11.99
    MSRP: $14.94
    Save 20%
  • GX01-30 Hytrex Replacement Filter Cartridge

    GX01-30 Hytrex Water Filter Cartridge

    $11.99
    MSRP: $16.09
    Save 25%

Items 1 to 48 of 471 total

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