The Speedway Engine Cleaning Gun is the ideal way to quickly clean any dirt, grease, or grime from any engine. It is an essential tool for farmers, truckers, contractors, etc. It has an aluminum body and a steel air nozzle with a ¼ inch air inlet. The air NPT outlet is also ¼ inch. It has a 10 inch blow gun extension as well as a 4 foot suction hose with strainer that can work with a variety of solvents.