Dual Gauge Leak Down Tester

This Dual Gauge Leak Down Tester from King Racing lets you check your Engine Combustion Seal Efficiency through the Spark Plug Hole. If you’re losing power you will know where it is going. Detects Leaks in Valves, Cracked Heads, Rings, and Head Gaskets, Etc. It doubles as a Leak Down to set your Barrel Valve too! (See Barrel Valve Leak Down Hose.)