UNI terminal units are those points, fixed or flying, of a medical gas distribution system on which the user makes frequent connections and detachments to draw the various gases intended to supply anesthesia, ventilation, and general medical use equipment. Since incorrect connection can endanger the patient’s life, it is important that terminal units and their components are installed securely Materials used: chrome-plated brass CW614N for the body and other high-strength parts, for the outer ferrule, INOX steel for the pins, C98 steel for the springs, food-grade NBR or VITON rubber for the gaskets, polycarbonate for the labels, and copper for the output tube.