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 is available in 2 or 3 position, double or single action.  Manifolds are available with a large variety of functions and piping configurations.Size 1, ISO interface solenoid valve, Fluid: air