Three way ball valves area available in a variety of body materials and end connections. They can be manually operated or automated with an electric or pneumatic actuator and automated accessories. They can be used as diverter valves, where flow in a single inlet is diverted to either of the two other ports as the outlet. They can also be used as an input selector where a single outlet port is fed the flow from one of the others as the supply inlet. The ball through the ball comes in two varieties, “L” and “T” port.