BC4 Single End Porting Single end porting is available for all BC4 actuators except the 5/8" BC406 model. Simplifying your air hook up, this option allows you to run air lines to just one end of the actuator. Single end porting for the BC410 model is factory installed on the right side. Converting from standard porting to left and right side porting can be achieved if plugs are placed as shown in the diagram below. Air Flow Diagrams |