This 243 Lowest Pressure Signal Selector is a dual input single output logic device for use in pneumatic control systems

This 243 Lowest Pressure Signal Selector is a dual input single output logic device for use in pneumatic control systems. It is lightweight can be mounted in any position can be supported by the 1/4" poly tubing connected to the input and output fittings and can be used as a volume amplifying relay. The operating ambient temperature is 40 degrees Fahrenheit minimum 140 degrees Fahrenheit maximum.