... 3.Certificate: CCC,CE,UL 4.Use:Refrigeration returning Dual Stage Vacuum Pump VP280(8CFM-9CFM)1.Uses: used as a refrigeration ... : Die cast aluminum,not pig iron, easy to carry;5.Pump Color: green,blue, black for your reference. OEM is also ... you solenoid valve(1751) and vacuum gauge (1765) use for pump.3)According to differnt voltages in different countries and districts ...