The Black Diamond Suction Gun is designed for handling oils in and out of housings such as gear boxes, transfer cases, and differentials, making fluid service cleaner and more controlled. It’s ideal for automotive, agriculture, industrial, and marine applications, with a steel barrel finished in a premium powder coat for durability. A deluxe lip seal provides maximum suction and the gun needs no priming for quick operation. This suction gun holds 16 oz (500 ml) and is suitable for non-corrosive liquids, do not use with water-based fluids or other corrosive media.