@tibbyabc: The nominal size may be the same. The internal design does not have to be. For JARO's new union ball valve series, we increased the internal flow passage for the same nominal size. This is not only a change in appearance. It reflects a redesign of the valve body and internal structure to create a more open flow path inside the product. For customers comparing union ball valves, this is one of the details worth checking beyond the outside dimensions. JARO focuses on the connection outside the valve and the flow path inside it. #UnionBallValve #PlasticValves #JARO #ChinaValveFactory #ValveManufacturer