4V Series Solenoid Valve 4A Series Pneumatic Control Valve 5 ports Solenoid Valve and Air operated Valve, Airtac Standards On Click the picture to enlarge: Model: 4V110 4V210 4V310 4V410 4V120 4V220 4V320 4V420 4V130 4V230 4V330 4V430 4A110 4A210 4A310 4A410 4A120 4A220 4A320 4A420 4A130 4A230 4A330 4A330 4A430