This air conditioning AC diagnostic A/C manifold gauge tool kit refrigeration set is a must-have for any HVAC and refrigeration professional. It includes a high-quality and durable refrigerant manifold gauge set, as well as three hoses and a hook, all designed to make charging, evacuation, and testing quick and easy. The set is compatible with various refrigerants, including R12, R22, R404A, and R134A, and has a working temperature range of -20℃ to 60℃. The package comes with one refrigerant instrument, three hoses, and one hook, as shown in the bundle description. The hoses have a length of 95cm and a working pressure of 500PSI. This set is perfect for anyone looking for a reliable and efficient way to manage their refrigeration system.