Description: Multi-purpose for Caravan, Boats, Marine, Home Garden and Camping... The outlet is marked on the pump. The wire has no positve or negative difference, easy to install. The water inlet should be equipped with a filter(NOT INCLUDED) to keep the pump from being jammed. Made of superior quality material, high performance. Specification: Voltage: 12V Wattage: 60W Current: 5A Maxi Pressure: 0.8Mpa Flow: 4.5L/min Inlet/Outlet Diameter: 10mm (3/8'') Dimensions: Approx. 17.5*10*6cm/6.9*3.9*2.4 Inch Material: Plastic Package Includes: 1 Piece Pump