Neptune+ Modular

Modularity, quality, and reliability you can touch.

The Neptune+ Modular is perfect when installation space is limited. Separate components allow you to mount and place the equipment to fit your given space without sacrificing performance.

Neptune+ Modular Specs

Available Output
3,400 / 4,600 / 5,800 / 8,000 / 10,000
12.88 / 17.42 / 21.97 / 30.30 / 37.88
Electrical Requirements
220 / 380 / 460
50 / 60
  • Get Neptune+ Modular Spec Sheet


The Neptune+ has been recognized for its high efficiency and extreme reliability.

With output capacities ranging from 3,400 to 10,000 GPD, the Neptune+ Series has established itself as a dependable workhorse by utilizing premium components: 316SS pumps, commercial filtration, NEMA 4X electrical enclosures, slow turning HP pumps, pressure vessels with 6x the safety factor, and industry-leading certified control systems. When you add Automated Pressure Control, and the corresponding media filtration skid, the Neptune+APC is the optimum system with automated watermaking at your fingertips. The Neptune+ Horizontal and Modular configurations allow flexible installation options, which make it ideal for commercial vessels, island homes, oil platforms, hotels, or large yachts with limited operating space.

The Neptune+ is equipped with FCI’s next generation V4 controller and interface, which allows customization of your Watermaker through intuitive advanced touch screen controls. Our monitor’s higher heat tolerance and system design allows it to work in the harshest environments. FCI V4 HMI/PLC Touch Screen Controls can be installed with confidence, because they are Marine Certified with Type Approval Certifications from: ABS, GL, Lloyd’s Register EMEA, Det Norske Veritas, and Russian Maritime Register of Shipping. Rest assured, our displays will not interfere with other on-board electronics.

Typical Sea Water Conditions

77° F / 25° C,
825 PSI

Parts & Dimensions

Neptune+ Modular

Control / Flow Panel
Width35.50 in / 901.70 mm
Depth11.20 in / 284.48 mm
Height16.91 in / 429.51 mm
HP Pump
Width48.50 in / 1231.90 mm
Depth18.60 in / 472.44 mm
Height16.10 in / 408.94 mm
Width15.10 in / 383.54 mm
Depth17.00 in / 431.80 mm
Height20.96 in / 532.38 mm
Fresh Water Flush
Width12.65 in / 321.31 mm
Depth8.09 in / 205.49 mm
Height13.76 in / 349.50
LP Pump
Width6.90 in / 175.26 mm
Depth13.50 in / 342.90 mm
Height9.15 in / 232.41 mm
Pressure Vessels 3400-5800 GPD
Pressure Vessels 8000-10000 GPD


V4 Remote 4.3" (OPTION)
Width5.71 in / 145.03 mm
Depth2.13 in / 54.10 mm
Height4.09 in / 103.89 mm
V4 Remote 7" (OPTION)
Width8.04 in / 204.22 mm
Depth2.13 in / 54.10 mm
Height5.64 in / 143.26 mm
Standard Features
  • Exclusive Marine Certified HMI/PLC V4 Control System
  • 7” Hi-res Touch Screen
  • Monitors are Type Approval Certified for marine use by: ABS, GL, Lloyd’s Register EMEA, Det Norske Veritas, and Russian Maritime Register of Shipping
  • New NMEA 2000 compatible
  • Unique IP address for remote access
  • Built-in, on-screen troubleshooting
  • 316SS Low-pressure Pump with closed impeller design (producing 50% more pressure with the same horsepower)
  • 316SS HP Pump
  • Commercially designed to operate 24/7, 365 days per year
  • Pressure Vessels with 316SS pressure and product ports, stress-eliminating engineering
  • 80 sq. ft. of Commercial Pre-filtration
  • Conservatively rated to ensure performance under varying conditions
  • Wash-down duty motors (epoxy coated, neoprene gaskets)
  • Dual isolation mounts: 6 each on the pump and motor skid, and 6 on the main frame
  • One Year Warranty
Optional Equipment / Accessories
  • Bridge classified 4.3” or 7” remote touch control station
  • pH neutralizer filter
  • Spare parts kits
  • 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

Media Filter

Replacement Parts

Clean Water to the World


Contact Us

Or call us at 801.906.8840