Product details : FESTO 578801 ONE-WAY FLOW CONTROL VALVE
one-way flow control valve VFOH-LE-A-G14-Q10 Valve function=One-way flow control function for exhaust Air, Pneumatic Connection, port 1=QS-10, Pneumatic Connection, port 2=G1/4, Type of actuation=manual, Adjusting element=External Hex