Greenfield GKDP30 3-inch Engine Pump Diesel has a discharge port diameter of 8-mm and a maximum delivery capacity of 50Cu meter/hr. Its engine type is air-cooled diesel and has a surface centrifugal, self-priming, and die-cast aluminum pump type. It is also perfect for fuel efficiency because it has a fuel consumption of a 100% load of 1.35L/hr with 3.5L fuel tank capacity and optional 5.5L fuel capacity.