Jabsco Flat Tank Oil Changer System - 3-1/2 Gallon Tank - 12V [17860-2012]Flat Tank Oil Changer System The Jabsco Flat Tank Oil Changer System simplifies the engine oil changing process, ideal for changing engine oil in Boats, RV's, Lawn and Garden Equipment. There is no need to worry about open containers causing spills when changing engine oils with the 3 1 2 Gallon (13LTR) compact self contained unit fitted with a self priming diaphragm pump with an easy pour spout for emptying. The Flat Tank design allows for easy