Loading... Please wait...| Quickly diagnose worn piston rings, bad valves and blown head gaskets. Works on most domestic and imported engines as well as boat and motorcycle engines. 1/4"x12" flexible hose for easy reach 0-300psi. Gauge diameter 2 9/16" x 2 5/8". Adaptor Sizes: Short Adaptor M14-1.25 (female) / M18-1.5 (male). Adaptor Sizes: Long Adaptor M14-1.25 (female) / M14-1.25 (male). |