SMC VS7-6-FG-D-1ZO Valve, Iso, Dbl Sol MSRP: Now: $126.60 Was: dimensions of smc's vs7 series conform to iso interface sizes 1 and 2. the pilot operated metal seal design allows the valve to be used with non-lube dry air and still maintain a long life. the vs7... VS7-6-FG-D-1ZO