The Ball Valve Coupling Connector has a 2-½” size with a socket x socket connection. It is a PVC schedule 40 with stainless steel barbed tubing connector. It is used to connect the EZ-FLO systems to the irrigation flow line with flexible tubing, provided with the EZ-FLO systems. It provides the ability to adjust the differential pressure between the inlet and outlet connection to the irrigation system flow line.