The Vintage Sears and Roebuck Compression Tester Gauge with Quick Coupler is a reliable tool for measuring compression in gasoline engines. With a maximum PSI of 300, this compression tester is designed to accurately gauge the performance of your engine. The quick coupler feature makes it easy to connect and disconnect the gauge for convenient use. Perfect for automotive enthusiasts and professionals alike, this compression tester from Sears is a must-have for any garage or workshop. R10
