High quality material: The air conditioning safety valve is made of durable brass, not easy to deform, durable for safety in the car or home air conditioner. Easy to install: No more troublesome installation, just connect the end of the hose and it can be easily rotated, reducing the loss of coolant during maintenance Safe and convenient: This safety valve is firm and reliable, and the top can be rotated, which can improve maintenance efficiency and improve the safety of the operation process and maintenance work Wide range of uses: Suitable for connecting refrigerant charging pipes, pressure relief valve discharge pipes, and can be widely used in refrigeration maintenance and construction Combination: The valve seal is made up of two parts: The outer thread and the inner thread cone, the inner thread and the refrigerant charging pipe are the connecting parts, and it is a matching tool for the r410a water control valve pipe