OTC's Cylinder Leakage Tester Kit quickly diagnoses internal engine problems like bad rings, valves, and leaking head gaskets and comes complete with adapters for most applications Dual 2-1/2 inch gauges read 0-100 psi and 0-700 kPa and feature chrome bezels and rugged protective outer boots Kit features a pressure regulated manifold with quick couplers, 24 inch long 14mm flex hose, and 10 mm, 12 mm, and 18 mm thread adapters Rugged, blow molded storage case with removable lid keeps components organized and protected when not in use Includes detailed instruction chart