Jabsco Oil Changer System 17820. The manifold is factory fitted with three ball valves to serve three different oil reservoirs. The system can be used to remove old oil from an engine or transmission then reversed with the integral reversing switch to pump a measured amount of new oil back into the engine or transmission. Each connection to an engine is controlled by a dedicated full flow ball valve. The system's cover provides an attractive appearance and also provides added protection against accidental draining of an engine's oil supply because the valve cover protects the factory supplied valves from being accidentally bumped open. Additionally at the end of an oil change the Jabsco Oil Changer System will not close unless the factory supplied valves are in the fully closed position. Specifications for Jabsco 17820 Oil Changer System: Manufacturer: Jabsco Color: Black Voltage: 12 volts Features of Jabsco 17820 Oil Changer System Volts: 12v Package Contents: Jabsco 17820 Oil Changer System Jabsco 17820-0012: Oil Changer System 17820