SMC SQ2A31-51-C6 Valve, Dbl, Plug-In, 3 Port MSRP: Now: $84.95 Was: SQ2*3*, 2000 Series, 5 Port Solenoid Valve, Plug-in Type, NewThe 5 port solenoid valves series SQ was designed for applications which demand high speed, high frequency, long life and a precise... SQ2A31-51-C6