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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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  • GS-6RO-B Pentek Inline Filter Replacement Cartridge

    GS-6RO-B Pentek Inline Water Filter Cartridge

    $9.99 Retail Price:  $12.18
  • IC-101L Pentek Inline Filter

    IC-101L Pentek Inline Filter

    $8.99 Retail Price:  $12.98
  • P-250 Pentek Undersink Filter Set

    P-250 Pentek Undersink Filter Set

    $23.99 Retail Price:  $31.84
  • P-250A Pentek Undersink Filter Set

    P-250A Pentek Undersink Filter Set

    $23.99 Retail Price:  $31.27
  • PCF1-20MB Pentek Whole House Filter Replacement Cartridge
  • QC10-CB1 Pentek Undersink Quick-Change Filter System

    QC10-CB1 Pentek Quick-Change Water Filtration System

    $28.79 Retail Price:  $35.41
  • TS-101L Pentek Lime/Scale Inline Filter

    TS-101L Pentek Lime/Scale Inline Filter

    $11.99 Retail Price:  $15.28
  • US-1000 Pentek Undersink Filter System

    US-1000 Pentek Undersink Filter System

    $126.99 Retail Price:  $139.71
  • US-1500 Pentek Undersink Filter System with Monitor
  • WS-10 Pentek Water Softening Filter

    WS-10 Pentek Water Softening Filter

    $20.99 Retail Price:  $24.83
  • WS-20 Pentek Water Softening Filter

    WS-20 Pentek Water Softening Filter

    $26.99 Retail Price:  $35.64
  • R200 OmniFilter Inline Filter System

    R200 OmniFilter Inline Water Filtration System

    $14.99 Retail Price:  $16.09
  • AICRO Watts Inline Polishing Filter

    AICRO Watts Inline Polishing Filter

    $7.99 Retail Price:  $9.19
  • AICRO-JGK Watts Inline Filter Cartridge
  • Whirlpool WHAB-6009 Replacement Unit A Water Filter Cartridge

    WHAB-6009 Whirlpool Replacement Unit A Filter Cartridge

    $36.99 Retail Price:  $43.34
  • LSB4 Lifesaver 4000UF Water Bottle
  • LSB4RC Lifesaver 4000UF Water Bottle Replacement Cartridge
  • LSB6 Lifesaver 6000UF Water Bottle

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