This petrol-powered marine watermaker delivers reliable freshwater production without needing external power. Introduced in 2014, it redefined portable desalination for cruising sailors, remote locations, and emergency preparedness. Just add fuel—no generator or battery bank required.

Self-contained gasoline desalination system

Powered by a 2.1HP Honda GXH50 engine, this unit runs up to 70 minutes on a single 700ml tank. The belt-driven system operates both the impeller lift pump and the high-pressure pump, eliminating power conversion losses. Ideal for boats already carrying gasoline, and perfect when generator-free redundancy is needed.

Two-part RO system

Includes a pressure supply unit (PSU) and a reverse osmosis (RO) unit. The PSU draws seawater, filters out debris, and pressurizes the system. The RO unit extracts up to 70 liters per hour of potable water, with about 20% of seawater converted to fresh output. Brine discharge is automatic. Choose from multiple RO unit options based on your water needs and available space.

• 50-70 lph (13-18 gph)
• 2 x 21 RO Membranes
• 2.1HP Honda GXH50 (4 stroke) motor:
• 700 ml (1.5pt) fuel / 70 minutes operation:
• Integrated flexible impeller lift pump uses non-proprietary impeller:
• 2 metre (6 ft) maximum lift above sea level:
• General Pump WM 316 stainless steel high pressure triplex plunger pump:
• General Pump 316SS/ceramic relief valve to prevent overpressurisation:
• Sound levels – 73dB at 6 metres (20 ft) – see chart:
• Case of sturdy moulded polyethylene:
• RO Case (mountable if desired): rotomoulded polyethylene:
• Single 10 x 2.5 non-proprietary 5 micron prefilter to remove sediment mounted on PSU:
• 0 – 150lph (40gph) product water flow meter, integrated into RO case:
• 5 metre (16 ft) intake hose fitted with one way valve to remain primed, with detachable strainer:
• 3 metre (10 ft) brine waste discharge hose:
• PSU weight: 26kg (58lb):