Max-Q+APC/DTS Double-Pass Modular

The Max-Q+APC/DTS is the Flagship of our Max-Q Series, containing 3 modes of operation: Seawater Single-pass, Spot-free Double-pass, and Spot-free Dockside Municipal water treatment, all in one compact system.

  • Max-Q+APC and DTS+ in one all-inclusive system
  • The only true, one-touch fully automatic combo unit on the market
  • The industry’s only Marine Certified HMI/PLC Touch Screen V4 Control System
  • Exclusive NEMA 4X rated enclosures and valves for safety and protection in harsh environments
  • 8-point Vibration Isolation for exceptionally quiet operation

The Max-Q+APC/DTS is the flagship of the series, containing 3 systems in 1 compact frame: Watermaker, Double-pass Spot-free Seawater Purifier, and Spot-free Dockside Treatment System for municipal feed water.

Max-Q+ APC/DTS Double-Pass Modular Specs

Available Output
1,850 GPD
1,200 GPD
2,000 GPD
Electrical Requirements
2.29; 0.75 (DTS)
120 / 208-240 / 380 / 480
50 / 60
1 / 3


    Combine yachting’s most reliable and advanced water making system, Max-Q+APC, with our spot-free workhorse, DTS+, and you get the ultimate, and world’s only fully automated water purification system of its kind.

    The Max-Q+APC/DTS Double-Pass Modular is an all-inclusive system that saves up to 40% on initial equipment cost, and 50% less on the installation cost of multiple components. Identical to the Max-Q+ Framed but built for those with tighter fits.

    FCI brings you the first all-in-one fully automated, self-adjusting system, thanks to Automatic Pressure Control (APC) valving, automated source water valve selection, and the industry’s only marine certified hi-res touch screen panel. Choose amongst 3 modes:

    Seawater – seawater to purified water
    Double-pass – seawater to spot-free
    Dockside – municipal to spot-free

    Our exclusive, intuitive V4 controls allow you to customize your system, and go from seawater to drinking water, or dock water to spot-free water with one touch. The included carbon and sediment pre-filtration optimizes membrane life, resulting in less maintenance, lower operating costs, and more enjoyment at sea. Safety is a top priority, so we employ the industry’s only NEMA 4X rated electrical enclosures and valves, which means they are resistant to corrosion and protected against directed water intrusion. With the built-in DTS+, spend less time wiping down your vessel, and relish the benefits of spot-free wash-downs to maintain and extend the life of your yacht’s finishes, equipment, and gear.

    Read more on Why FCI leads the industry in reliability, engineering and technical support.

    Icons and intuitive navigation make customizing your system effortless.

    Eliminate hard water build-up on your gear, galley and appliances.

    Provides purified drinking and cooking water when you need it.

    No more chamois-drying windows, rails, and hard-to-reach areas.

    Typical Water Conditions

    77º F / 25º C,
    32,000 Seawater; <500 Municipal/DTS,
    825 PSI Seawater; 60 PSI Municipal/DTS

    Parts & Dimensions

    Max-Q+APC/DTS Double-Pass Modular

    Display / Valve Panel
    Width20.00 in / 508.00 mm
    Depth7.75 in / 196.85 mm
    Height15.10 in / 383.54 mm
    Flow Panel
    Width28.00 in / 711.20 mm
    Depth9.30 in / 236.22 mm
    Height14.80 in / 375.92 mm
    LP Pump
    Width7.15 in / 181.61 mm
    Depth15.90 in / 403.86 mm
    Height10.80 in / 274.32 mm
    Width11.10 in / 281.94 mm
    Depth9.60 in / 243.83 mm
    Height20.50 in / 520.70 mm
    Fresh Water Flush
    Width9.30 in / 236.22 mm
    Depth6.10 in / 154.94 mm
    Height12.45 in / 316.23 mm
    HP Pump
    Width23.96 in / 608.58 mm
    Depth9.65 in / 245.11 mm
    Height10.64 in / 270.27 mm
    3-Way Actuated Valve
    Width5.96 in / 151.38 mm
    Depth4.58 in / 116.33 mm
    Height14.20 in / 360.68 mm
    Carbon Inlet Filter
    Width11.47 in / 291.34 mm
    Depth8.09 in / 205.49 mm
    Height13.76 in / 349.50 mm
    Pressure Vessels
    Width47.84 in / 1215.14 mm
    Depth7.10 in / 180.34 mm
    Height (1275 GPD Systems)20.00 in / 508.00 mm
    Height (1850 GPD Systems)24.00 in / 609.60 mm


    V4 Remote 4.3 inch (OPTION)
    Width5.71 in / 145.03 mm
    Depth2.13 in / 54.10 mm
    Height4.09 in / 103.89 mm
    V4 Remote 7 inch (OPTION)
    Width8.04 in / 204.22 mm
    Depth2.13 in / 54.10 mm
    Height5.64 in / 143.26 mm
    Standard Features
    • Spot-free water from seawater or dockside water
    • 3-in-1 System saves up to 40% in cost of equipment, and 50% less on installation
    • Fully Automated in all 3 modes of operation: Seawater, Double-pass, and Dockside modes
    • Standard Automatic Pressure Control auto-adjusts pressure to global feed water conditions
    • Intuitive HMI/PLC V4 Control System with one touch operation
    • Exclusive Marine Certified 7” Hi-res Touch Screen Display
    • NEMA 4X Rated V4 Control Valving and Protection
    • Noise-dampening 8-point Vibration Isolation Mounts and Open Frame design contribute to the industry’s quietest operating system
    • Built-in, on-screen troubleshooting, and exceptional on-call technical support available
    • Fully automated Fresh Water Flush
    • Standard DTS GAC Filter protects against chlorine and harmful dock water contaminates
    • Standard 40 sq. ft. commercial Pre-filter with PVC core in addition to pressure monitoring and alarming
    • 40 sq. ft. of 5μ micron pleated filtration
    • Unique IP address for remote access
    • The industry’s smallest double-pass unit available in its category
    • Ability to relocate Pressure Vessel Assemblies and FWF Assembly to reduce frame footprint
    • 316L SS Boost Pump with washdown duty motor and 316L SS motor shaft
    • 316SS HP Pump
    • The industry’s only Visual indication of product and brine flows
    • Dual Voltage and Dual Hertz operation
    • Multiple display station capabilities
    • Automatic Flush system
    • Washdown Duty Motors
    • 316SS pressure transducers
    • Pretreatment lockout
    • Complete exploded view manuals
    • One-piece skid mount design
    Optional Equipment / Accessories
    • Bridge classified 4.3” or 7” remote touch control station
    • pH neutralizer filter
    • Cruising kits
    • UV sterilizers
    • Feed water pressure regulators, relief valves and feed pump
    • Automated and manual Media Filters
    • Custom system designs
    • System soft start

    Available Accessories

    Remote Display

    Replacement Parts

    Clean Water to the World


    Contact Us

    Or call us at 801.906.8840