Professional-grade Star Products CLT-2 Cylinder Leakage Tester in hard storage case. Designed to help diagnose engine condition by measuring cylinder leakage and identifying issues with valves, piston rings, head gaskets, and more. Features dual protected gauges with rubber surrounds, adjustable regulator, hose, and quick-connect fitting. Made in the USA. Comes in the original red molded storage case. Excellent pre-owned condition