Coolant Evacuator and System Tester

After draining the radiator the tester will evacuate all the air from the system. Within two or three minutes the gauge will read that vacuum is held and there are no leaks. Coolant then can be refilled into the coolant systems without creating any air locks. Supplied with interchangeable sleeves and tapered cone to fit all radiator necks. Prevents air locks and overheating!