Cooling System Pressure Tester Hand operated pump builds pressure quickly to locate leaks in automotive cooling systems. Includes adapter for connecting to bayonet style radiator and coolant bottle necks found on. many US and foreign manufactured automobiles. Connects directly to Stant style adapters. No conversion adapter is required.. Convenient push-button valve safely relieves pressure when testing is complete. Additional adapters available for most all makes and models of cars and light trucks. Adapters also available for testing cooling system caps. Packaged in custom molded case INCLUDES:. Hand Pressure Pump w/ 2’ (610 mm) long hose and push-button pressure relief valve. Cooling System Adapter (US and foreign cars). Custom Molded Case. User’s Manual (English, Spanish, French) MV4529