Which type of tank must be used during the transfer of refrigerant?

During the transfer of refrigerant, a recovery tank must be used. These tanks are specifically designed to safely contain refrigerants and are built to handle the pressures involved in refrigerant transfer. It is essential to ensure that the tank is rated for the specific type of refrigerant being used, as different refrigerants have different properties and safety requirements. Using the appropriate recovery tank helps prevent leaks and potential hazards.