Flange, Lap Joint, 2 1/2 in Nominal Pipe Size, Socket, 7 in Flange Outside Diameter, 15/16 in Flange Thickness, Schedule 80, Class Class 150, For Pipe Schedule Schedule 80, PVC, 150 psi Maximum Operating Pressure, 140 Degrees F, Number of Bolt Holes 4, 5 1/2 in Bolt Circle Diameter, 11/16 in Bolt Hole Diameter, 2 1/8 in Overall Length, Gray