Features: Automotive air conditioners normally lose refrigerant every year, which is determined by the semi-hermetic sealing method of automotive air conditioning compressors. This is a normal less, we only need to add a bottle of refrigerant to the car air conditioner every year. Don't worry, here's a brief way to add. Friends can try to manually refill the refrigerant. The air conditioner refrigerant supplement is as convenient and safe as the tire inflation. Description: Unique spring pressure indicator with accuracy error of 1.5 level The connection hose is made of high-quality rubber with material corrosion reduction of 98% The durable and sturdy knob handle for use of more than 50000 times .
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