The Snap-on Cooling System Pressure Tester – Air Powered, No. SVTS263, is an air-powered upgrade to some of the company's other hand pumped cooling system pressure testers and runs on standard pressure-regulated shop air. The stainless steel and chrome plated components offer durability. The device safely tests small systems due to sensitive pressure regulation and an accurate gauge due to the internal shock absorber and eternal rubber boot. The unit also has a swivel hook on the top so that the technician can hang it under the vehicle hood. It comes in a blow molded case and includes three common adapters.