OEMTOOLS 27266 Master Compression Test Kit Includes (1) 2-1/2" Gauge with Dual Scale 0-300 Psi and 0-20 Bar and (1) 1-1/2" Gauge with Single Scale 0-200 Psi and 10" Extension with Quick Connect and Protective Boot M14 Hoses: (1) Short Thread and (1) Long Thread M18 Hose with Short Threads M10, M12 and M18 Solid Adapters Extra O-Rings and Valve Cores