The portable unit comes ready for use with a two-meter-long power cord and a grounded plug. It consists of a motor-driven vacuum pump with vibration-damping feet, a one-meter-long spiral vacuum hose, a test fitting in the form of an A-type blind coupling with a T-fitting, a pressure-vacuum gauge, and a three-way ball valve with a quick-connect coupling for pressure testing, as well as an A-type blind coupling with a vent valve for pressure testing. The piping is made of stainless steel.