The Metabo 31603977 (Order Number 627050000) is a genuine safety coupling with quick stop functionality, designed for secure and rapid connection and disconnection of compressed air tools and hoses. This coupling effectively prevents the hose from whipping upon disconnection, enhancing safety during operation. It features a 1/4 inch internal thread connection and is suitable for a maximum operating pressure of 16 bar. The nominal width for air flow is 7.2 mm, and it operates within a temperature range of -20 °C to +100 °C.