motorized ball valve 12V, DN20, with manual switch, 2 way, electrical valve,brass Description:This listing includes 1 unit of motorized ... 3.Chemical process 4.Small equipment for automatic control 5.Replacing solenoid valve, particularly when solenoid cannot work reliably Features:1 ... ) motorized ball valve 12V, DN20, with manual switch, 2 way, electrical valve,brass