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4-Stage Water Filtration Systems

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  • Omnipure EFS4 14" Quad Espresso Filtration System (CTO & Softening)

    $264.99 - $264.99
    $264.99
    $264.99 - $264.99
    $264.99

    OMNIPURE EFS4 QUAD ESPRESSO MACHINE WATER FILTER This system uses the proven performance of softening resin to remove scaling minerals. The disp...

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    $264.99 - $264.99
    $264.99
    $264.99 - $264.99
    $264.99
  • Everpure EV9329-74 High Flow CSR Quad 7FC System with Pre-Filter

    Everpure EV9329-74 High Flow CSR Quad 7FC System + Pre-Filter (Combination)

    $1,615.14 - $1,615.14
    $1,615.14
    $1,615.14 - $1,615.14
    $1,615.14

    Pentair Everpure High Flow CSR-FC Systems deliver premium quality water to high-flow fountain, coffee, and ice machine applications, increasing the...

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    $1,615.14 - $1,615.14
    $1,615.14
    $1,615.14 - $1,615.14
    $1,615.14
  • Everpure EV9437-42 Endurance SC High Flow Quad Filtration System
    Everpure EV9437-42 Endurance SC High Flow Quad Filtration System

    Everpure EV9437-42 Endurance SC High Flow Quad Filtration System (Combination)

    $787.45 - $3,453.60
    $787.45 - $3,453.60
    $787.45 - $3,453.60
    $787.45

    All the benefits of the Everpure Endurance platform plus ultrafilter membrane-based pretreatment. The Everpure Endurance SC High Flow SEN Filter Sy...

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    $787.45 - $3,453.60
    $787.45 - $3,453.60
    $787.45 - $3,453.60
    $787.45
  • Everpure EV9437-32 Endurance High Flow Quad Filtration System
    Everpure EV9437-32 Endurance High Flow Quad Filtration System

    Everpure EV9437-32 Endurance High Flow Quad Filtration System (Combination)

    $1,063.15 - $2,103.00
    $1,063.15 - $2,103.00
    $1,063.15 - $2,103.00
    $1,063.15

    Everpure Endurance High Flow Filtration Systems can meet your peak water demands today and tomorrow, delivering premium quality water for high volu...

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    $1,063.15 - $2,103.00
    $1,063.15 - $2,103.00
    $1,063.15 - $2,103.00
    $1,063.15
  • Everpure EV9437-30 Endurance High Flow Twin Filtration System
    Everpure EV9437-30 Endurance High Flow Twin Filtration System

    Everpure EV9437-30 Endurance High Flow Twin Filtration System (Combination)

    $720.36 - $1,780.20
    $720.36 - $1,780.20
    $720.36 - $1,780.20
    $720.36

    The Pentair® Everpure® Endurance High-Flow Filtration systems are designed to treat up to 200,000 gallons of water per SEN cartridge change cycle. ...

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    $720.36 - $1,780.20
    $720.36 - $1,780.20
    $720.36 - $1,780.20
    $720.36
  • Everpure EV9324-76 Insurice Quad 7SI Ice Filtration System

    Everpure EV9324-76 Insurice Quad 7SI Ice Filtration System (Ice)

    $883.80 - $883.80
    $883.80
    $883.80 - $883.80
    $883.80

    Specially designed for use with ice machines, the Everpure Insurice Single - 4SI System offers dirt reduction, scale protection, and reduced slime,...

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    $883.80 - $883.80
    $883.80
    $883.80 - $883.80
    $883.80
  • Everpure EV9327-74 Insurice PF Quad 7FC-S System with Pre-Filter
    Everpure EV9327-74 Insurice PF Quad 7FC-S System with Pre-Filter

    Everpure EV9327-74 Insurice PF Quad 7FC-S System + Pre-Filter (Ice)

    $1,659.60 - $1,659.60
    $1,659.60
    $1,659.60 - $1,659.60
    $1,659.60

    The Everpure EV9327-74 Insurice PF Quad 7FC-S System reduces chlorine, taste, odor, and other offensive contaminants and has an integrated beaded p...

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    $1,659.60 - $1,659.60
    $1,659.60
    $1,659.60 - $1,659.60
    $1,659.60
  • Everpure EV9324-77 Insurice Quad PF-7SI Filtration System (Ice Machines)

    Everpure EV9324-77 Insurice Quad PF-7SI Filtration System (Ice)

    $1,027.20 - $1,027.20
    $1,027.20
    $1,027.20 - $1,027.20
    $1,027.20

    SEDIMENT FILTRATION (0.5 MICRON) FOR PREMIUM QUALITY WATER FOR ICE APPLICATIONS. Applications: Ice Machines • High Capacity • High Volume • High ...

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    $1,027.20 - $1,027.20
    $1,027.20
    $1,027.20 - $1,027.20
    $1,027.20
  • Everpure EV9761-34 High Flow CSR Quad-XCLM+ Filtration System with Pre-Filter

    Everpure EV9761-34 High Flow CSR Quad-XCLM+ Filtration System + Pre-Filter (Combination)

    $1,554.60 - $1,554.60
    $1,554.60
    $1,554.60 - $1,554.60
    $1,554.60

    The Pentair Everpure High Flow CSR Quad-XCLM+ System is a high capacity chloramines reducing system that delivers premium quality water to high flo...

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    $1,554.60 - $1,554.60
    $1,554.60
    $1,554.60 - $1,554.60
    $1,554.60
  • Everpure EV9437-40 Endurance SC High Flow Twin Filtration System
    Everpure EV9437-40 Endurance SC High Flow Twin Filtration System

    Everpure EV9437-40 Endurance SC High Flow Twin Filtration System (Combination)

    $454.60 - $3,121.80
    $454.60 - $3,121.80
    $454.60 - $3,121.80
    $454.60

    All the benefits of the Everpure Endurance platform plus ultrafilter membrane-based pretreatment. The Everpure Endurance SC High Flow SEN Filter Sy...

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    $454.60 - $3,121.80
    $454.60 - $3,121.80
    $454.60 - $3,121.80
    $454.60
  • Everpure EV9347-20 High Flow CSR Plus XC2 with Tank Filtration System
    Everpure EV9347-20 High Flow CSR Plus XC2 with Tank Filtration System

    Everpure EV9347-20 High Flow CSR Plus XC2 with Tank Filtration System (Combination)

    $1,722.00 - $1,722.00
    $1,722.00
    $1,722.00 - $1,722.00
    $1,722.00

    The Pentair Everpure High Flow CSR system delivers premium quality water for combination applications. One system provides premium quality water to...

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    $1,722.00 - $1,722.00
    $1,722.00
    $1,722.00 - $1,722.00
    $1,722.00
  • Everpure EV9347-21 High Flow CSR Plus-XC2 w/ LPA & Tank Filtration System
    Everpure EV9347-21 High Flow CSR Plus-XC2 w/ LPA & Tank Filtration System

    Everpure EV9347-21 High Flow CSR Plus-XC2 w/ LPA & Tank Filtration System (Combination)

    $1,891.80 - $1,891.80
    $1,891.80
    $1,891.80 - $1,891.80
    $1,891.80

    The Pentair Everpure High Flow CSR system delivers premium quality water for combination applications. One system provides premium quality water to...

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    $1,891.80 - $1,891.80
    $1,891.80
    $1,891.80 - $1,891.80
    $1,891.80
  • Everpure EV9761-24 Coldrink 4 XCLM+ Filtration System with Pre-Filter
    Everpure EV9761-24 Coldrink 4 XCLM+ Filtration System with Pre-Filter

    Everpure EV9761-24 Coldrink 4 XCLM+ Filtration System + Pre-Filter (Fountain)

    $1,430.40 - $1,430.40
    $1,430.40
    $1,430.40 - $1,430.40
    $1,430.40

    The Pentair Everpure Coldrink 4-XCLM+ is a high-capacity chloramines-reducing system ideal for food service operations with high water usage for fo...

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    $1,430.40 - $1,430.40
    $1,430.40
    $1,430.40 - $1,430.40
    $1,430.40
  • Everpure EV9328-44 Coldrink 4 4FC Filtration System with Pre-Filter

    Everpure EV9328-44 Coldrink 4 4FC Filtration System + Pre-Filter (Fountain)

    $1,243.80 - $1,243.80
    $1,243.80
    $1,243.80 - $1,243.80
    $1,243.80

    The Everpure Coldrink 4 7FC Filter System provides fresh, premium water for fountain beverages or combination systems. With increased capacity, the...

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    $1,243.80 - $1,243.80
    $1,243.80
    $1,243.80 - $1,243.80
    $1,243.80
  • Everpure EV9771-24 Coldrink 4 7CLM+ Filtration System with Pre-Filter (2-3 Carbonators)

    Everpure EV9771-24 Coldrink 4 7CLM+ Filtration System + Pre-Filter (Fountain, 2-3 Carbonators)

    $1,272.60 - $1,272.60
    $1,272.60
    $1,272.60 - $1,272.60
    $1,272.60

    The Everpure Coldrink High Capacity Single System is part of the newest line of systems from Everpure, delivering superior filtration for premium w...

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    $1,272.60 - $1,272.60
    $1,272.60
    $1,272.60 - $1,272.60
    $1,272.60
  • Everpure EV9771-14 QC7I Quad-7CLM+ Filtration System (3-4 Carbonators)

    Everpure EV9771-14 QC7I Quad 7CLM+ Filtration System (Fountain, 3-4 Carbonators)

    $1,090.20 - $1,090.20
    $1,090.20
    $1,090.20 - $1,090.20
    $1,090.20

    Pentair's EV9771-14 QC7I Quad-7CLM+ Water Filtration System is a high capacity, quick change chloramines reduction solution for fountain beverage a...

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    $1,090.20 - $1,090.20
    $1,090.20
    $1,090.20 - $1,090.20
    $1,090.20
  • Everpure EV9328-74 Coldrink 4 7FC Quad Filtration System with Pre-Filter

    Everpure EV9328-74 Coldrink 4 7FC Quad Filtration System + Pre-Filter (Fountain)

    $1,559.40 - $1,559.40
    $1,559.40
    $1,559.40 - $1,559.40
    $1,559.40

    The Everpure Coldrink 4 7FC Filter System provides fresh, premium water for fountain beverages or combination systems. With increased capacity, the...

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    $1,559.40 - $1,559.40
    $1,559.40
    $1,559.40 - $1,559.40
    $1,559.40
  • Everpure EV9327-44 Insurice PF Quad 4FC-S Filtration System with Pre-Filter
    Everpure EV9327-44 Insurice PF Quad 4FC-S Filtration System + Pre-Filter (Ice Machines)

    Everpure EV9327-44 Insurice PF Quad 4FC-S Filtration System + Pre-Filter (Ice)

    $1,311.60 - $1,311.60
    $1,311.60
    $1,311.60 - $1,311.60
    $1,311.60

    The Everpure EV9327-44 Insurice PF Quad 4FC-S System reduces chlorine, taste, odor, and other offensive contaminants and has an integrated beaded p...

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    $1,311.60 - $1,311.60
    $1,311.60
    $1,311.60 - $1,311.60
    $1,311.60

Best Sellers

  • Everpure ESO7 Water Filter & Softening Cartridge (1.0 GPM)

    Everpure ESO7 EV9607-25 Water Filter Softening Cartridge 1.0 GPM (Espresso)

    $149.33 - $149.33
    $149.33
    $149.33 - $149.33
    $149.33

    The Everpure ESO 7 EV960725 Cartridge has a unique three-stage blending process to provide softened, buffered, filtered water for specialty coffee,...

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    $149.33 - $149.33
    $149.33
    $149.33 - $149.33
    $149.33
  • OptiPure CTO-Q10 300-05828 10" Filter Cartridge
    OptiPure CTO-Q10 300-05828 10" Filter Cartridge

    OptiPure 300-05828 CTO-Q10 10" Filter Cartridge 1.5 GPM 0.5 Micron

    $80.79 - $80.79
    $80.79
    $80.79 - $80.79
    $80.79

    The Pentair OptiPure CTO-Q10 is a 10” Qwik-Twist cartridge for use in OptiPure QT10 Series Systems to reduce sediment down to 0.5-microns and reduc...

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    $80.79 - $80.79
    $80.79
    $80.79 - $80.79
    $80.79
  • OptiPure QTI1+CR Dual Replacement Cartridge Kit
    OptiPure QTI1+CR Dual Replacement Cartridge Kit

    OptiPure 170-52081 QTI1+CR Replacement Cartridge Kit (CTO-Q10, CTOS-QCR)

    $176.43 - $176.43
    $176.43
    $176.43 - $176.43
    $176.43

    The CTO-Q10 is a 10” Qwik-Twist cartridge that reduces sediment down to 0.5 microns and reduces chlorine, taste & odor at a flow rate of 1.5 GP...

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    $176.43 - $176.43
    $176.43
    $176.43 - $176.43
    $176.43
  • Everpure DEV9830-01 HQS-WF Filter Cartridge

    Everpure DEV9830-01 HQS-WF Filter Cartridge

    $52.91 - $52.91
    $52.91
    $52.91 - $52.91
    $52.91

    Application: Produces perfect water for premium drinking water applications. Fits Everpure QL1 and QL3b heads. Part of a sanitary quick-change fil...

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    $52.91 - $52.91
    $52.91
    $52.91 - $52.91
    $52.91
  • OptiPure AMS-QT15 204-52820 Replacement RO Membrane

    OptiPure 204-52820 AMS-QT15 10" Reverse Osmosis RO Membrane 175 GPD

    $353.97 - $353.97
    $353.97
    $353.97 - $353.97
    $353.97

    The AMS-QT15 is a 10″ Qwik-Twist replacement membrane for BWS200 and OP175 systems that reduces Total Dissolved Solids (TDS), scale-causing mineral...

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    $353.97 - $353.97
    $353.97
    $353.97 - $353.97
    $353.97
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4-Stage Water Filtration Systems

A 4-stage water filtration system is a type of water purification setup designed to remove impurities and contaminants from drinking water. It consists of four distinct stages, each utilizing different technologies to enhance water quality. The stages typically include:

  1. Sediment Filtration: The first stage involves passing the water through a sediment filter. This filter is designed to remove large particles, such as dirt, sand, rust, and other debris, effectively protecting the subsequent stages from damage or clogging. It helps to improve water clarity and prevent any visible particles from reaching the later filtration stages.
  2. Carbon Filtration: In the second stage, the water passes through an activated carbon filter. Activated carbon is highly porous and has a large surface area that can effectively adsorb and trap a wide range of contaminants. It can remove chlorine, volatile organic compounds (VOCs), certain chemicals, unpleasant odors, and tastes. This stage is particularly important for enhancing the taste and odor of the water.
  3. Reverse Osmosis (RO) Filtration: The third stage of the 4-stage filtration system involves using a semi-permeable membrane, typically a reverse osmosis membrane. During this process, water is forced through the membrane, which has tiny pores that can block smaller particles and impurities. Reverse osmosis can remove heavy metals, dissolved solids, bacteria, viruses, and other contaminants, making it a highly effective purification step.
  4. Post-Carbon Filtration: After passing through the RO membrane, the water may still contain some trace impurities and have a flat taste due to removing minerals during the RO process. The fourth stage typically employs a post-carbon filter, which is often referred to as a polishing filter. This stage helps to further enhance the water's taste by removing any residual impurities and volatile organic compounds, while also restoring some beneficial minerals for better flavor.

The result of a 4-stage water filtration system is clean, clear, and great-tasting water, suitable for drinking and cooking. These systems are commonly used in residential settings and provide an effective way to improve water quality and safety. Keep in mind that the number of stages in a water filtration system can vary, and some systems may have more or fewer stages depending on their specific design and purpose.