solenoid valv emeterial:brass,stainless steel use for :water ,air connection :1/2" ,3/4" ,1", 1 1/2", 2", 2 1/2" Power : 220 solenoid valvemeterial:brass,stainless steeluse for :water ,airconnection :1/2" ,3/4" ,1", 1 1/2", 2", 2 1/2"Power : 220 solenoid valve