Pro140 High-Capacity Modular AC Watermaker - 140L/h (37 GPH)

The PureOcean Pro140 is a professional-grade modular watermaker designed for offshore cruisers who require a high-volume freshwater supply and intuitive system management. Delivering a powerful 140L/h (37 GPH) through its dual SW2540 membrane configuration, the Pro140 is engineered to fill large storage tanks efficiently, significantly reducing generator run time. At the center of the system is our signature stainless-steel dashboard, which provides centralized analog control and real-time monitoring of the entire desalination process. Built with a 100% manual mechanical philosophy, the Pro140 offers the rugged dependability and ease of maintenance essential for long-range maritime exploration.

An ideal configuration for 40-55 ft yachts, catamarans, and motorboats with significant freshwater requirements.

The Pro140 balances high output with the Pro Series' signature mechanical simplicity. It is the professional choice for boaters who need a high-capacity, reliable system that integrates neatly into their vessel’s engine room while offering a sophisticated, centralized control interface.

① Centralized Marine-Grade Command Center

The defining feature of the Pro140 is its marine-grade control panel. It integrates high/low-pressure analog gauges and a precision flow meter, allowing the captain to monitor system health and adjust output at a single glance. This centralized interface ensures total command without the risk of electronic failure.

② High-Yield Efficiency for Large Crews

Equipped with a high-performance motor and dual 40-inch membranes, the Pro140 is optimized for high-volume production. Its 37 GPH capacity easily supports the daily freshwater demands of a full crew, including multiple showers, laundry, and dishwashing, making it a reliable workhorse for high-occupancy vessels.

③ Simple and Reliable

Designed for the harshest marine environments where humidity and salt spray often compromise sensitive electronics. The Pro140 relies on industrial-grade mechanical gauges and manual valves, providing a "bulletproof" system that is easy to troubleshoot and operate in remote areas.

④ Marine-Grade Construction

Zero compromise on durability. The system features a High-Pressure Pump crafted from premium marine-grade stainless steel, high-strength FRP membrane vessels, and SS316L high-pressure fittings

⑤ Global Serviceability & DIY Friendly

Built with the international traveler in mind. The Pro140 uses high-quality, standardized, non-proprietary components. Replacement filters and standard fittings can be sourced in almost any major port, ensuring your system remains operational wherever your voyage takes you.

Your Complete Modular Kit Comes With:

1x Integrated panel (Dual gauges & flow meter)
1x Main Pump  (High-Pressure)
1x Boost Pump (Low-Pressure, Self-priming)
1x High-Strength FRP Membrane Housings Kit (with 2x SW2540 RO Membranes pre-installed)
1x Triple Pre-Filter Array (5 & 20 Micron Pleated Filters + Active Carbon Filter)
1x Heavy-Duty Hose & Tubing Kit (Food-grade high-pressure hose + all required lines)
1x Complete Installation Hardware Pack (Marine-grade clamps and brackets)
1x English Technical Manual & Comprehensive Installation Guide

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