UNI outlets are those points, fixed or flying, of a medical gas distribution system on which the user makes frequent connections and detachments to take the different gases intended to power the anesthesia, ventilation, and medical use equipment in general. Since an incorrect connection can endanger the patient’s life, it is important that the terminal units and their components are safely installed Materials used: CW614N chrome brass for the body and other high-strength details, for the outer ring, INOX steel for thorns, C98 steel for springs, NBR rubber or VITON food for seals, polycarbonate for labels and copper for the outgoing pipe.