0-300 PSI For dry and wet compression tests to detect ring, bore and cylinder head problems on small engines, motorcycles, marine engines and cars. 70mm gauge with 250mm hose and quick release coupler 14mm short-thread adapter with 165 and 305mm hoses 14mm long-thread adapter with 305mm hose 18mm short-thread adapter with 305mm hose 14mm short-thread x 18mm long-thread adapter 10 and 12mm thread small engine adapter Quick release air hold adapter Field service kit