Electric Hydraulic valve 1 circuit in & 3 circuits out operates on 12 volt DC. This is a basic hydraulic valve with 2 supply ports and 3 sets of ports for use with cylinders, hydraulic motors, etc Each set of ports has its own actuating coil. Applications include adding additional outlets to an existing outlet on a tractor for instance. Can be plumbed to turn 1 outlet into 3 outlets.