SMC SQ2531-51-C4 MSRP: Now: $84.70 Was: SQ2000 VALVE, SOL 4-WAY UI SQ2000 BUILT IN FITTING <1/4 VALVE, DBL, PLUG-IN SQ2531-51-C4
SMC SQ2531N-51-C6 Valve, Single, Plug-In MSRP: Now: $84.95 Was: SQ2000 VALVE, SOL 4-WAY UI SQ2000 BUILT IN FITTING <1/4 VALVE, DBL, PLUG-IN SQ2531N-51-C6
SMC SQ2531N-51-C6-Q Valve, Single, Plug-In MSRP: Now: $88.05 Was: 4/5 port solenoid valve valve, dbl, plug-in SQ2531N-51-C6-Q