Cooling System Pressure Tester Patented inflatable bladder attaches to radiator or header tank for system testing. The universal cooling system pressure tester that eliminates the need for system adapters. Universal attachment to radiator or header tanks- suits automotive, commercial, heavy duty, marine, motorcycle. Fit bayonet and threaded filler necks on radiators or header tanks. Fluid drain tube allows coolant to be returned to the coolant reservoir or safely collected in a container for recycling. Identifies cooling system pressure leaks. Complete with 4 double ended adapters for testing 8 different radiator cap types. Pressure Pump: 0-30 psi gauge Bladder is cycle tested to over 1500 inflations Suits neck diameter up to 45 mm. Max pressure: 30 psi 70888