The ENGINE CYLINDER LEAK DOWN TESTER by MADDOX is a comprehensive automotive tool designed for detecting leaks in gasoline engines. This 5-piece set includes a variety of accessories such as a user guide, quick connector, fittings, carrying case, thread adapters, adaptor hose, extension hose, and regulator. With a maximum pressure of 100 PSI, this leakage/leakdown tester is a reliable and essential tool for diagnosing and repairing automotive engines. The convenient case packaging makes it easy to store and transport, ensuring you always have the necessary tools on hand for any automotive maintenance or repair project.