Dura 437-487B 5" x 2-1/2" Black SCH 40 PVC SPG x Slip Reducer Bushing - Utilize this bushing to connect two pipes of varying sizes together. This item is equipped with a slip socket on one side, and a spigot socket on the other. SCH 40 PVC pipe is easy to use and install. It has a maximum working pressure of 450 PSI and can be used to create a rigid or restrained joint connection.