Valve opener 5/16''

A valve with 5/16" SAE (1/2" -20UNF) thread for lossless filling of refrigeration and air conditioning systems with R-410A refrigerant. It is used to connect the refrigerant cylinder to the access valve in the refrigeration or air conditioning system and fill it in such a way that the refrigerant disappears from the filling hoses. This instrument is essential for a service technician, a contractor who handles the operation of devices containing controlled substances or HFCs (f-gases).