Jabsco PAR-MAX4 water pressure system. Multi-outlet water pressure pump serves up to four 1/2" outlets simultaneously. Small size allows installation in confined areas, and quiet operation won't disturb nearby occupants. Diaphragm design allows it to run dry without damage. Thermal overload protection automatically stops the motor if it overheats. Power supply 12V. Electrical input 15A. Dimensions (25cm x 10.6cm x 10cm). Weight 2,7 Kg. Complies with USCG 183,410 and ISO 8846 MARINE (ignition protection). The design of the membrane allows for long dry running. Pressure switch - cuts in at 0.7bar (10psi) - cuts out at 1.7bar (25psi).