Quick coupling for the car's air conditioning that works on the new refrigerant R1234yf. The tool is used to connect the service hose to the connection on the low pressure side to fill the system or to transfer the refrigerant to the service station. Since the coupling is finished with an internal thread M12x 1.5, a reducer is also included that allows connection with the same hose, finished with a 1/4 "SAE thread (used in stations previously used with R134A).
