R22 REFRIGERANT GAS Make sure the charge valve connected with this product is qualified product and the high-pressure pipe, low-pressure pipe,vale and the cooling system are check the pressure of the cooling system and the other end with this product.Screw down the thimble of the charge valve.When it pokes the top of this produce. Screw the thimble up immediately and put this product upside down.Let the cooling medium in the bottle flow out until it reaches the given pressure.

Refrigerant Gas R22