AURELIO TECH 27pc Master Cooling Radiator Pressure Tester with Vacuum Purge and Refill Kit Material: Steel and plastic; Test range: 0- 35 PSI; Net weight: 160 oz.; Gross weight: 247 oz 0 to 35 psi gauge range Adapters usable with most of domestic and imported cars Durable product design and unexcelled precision of tools Complete, all-in-one set allows quick and easy testing for leakage in radiator and prompt change of coolant