Flange, Lap Joint, 1 in Nominal Pipe Size, Spigot, 4 1/4 in Flange Outside Diameter, 5/8 in Flange Thickness, Schedule 80, Class Class 150, For Pipe Schedule Schedule 80, CPVC, 150 psi Maximum Operating Pressure, 176 Degrees F, Number of Bolt Holes 4, 3 1/8 in Bolt Circle Diameter, 9/16 in Bolt Hole Diameter, 2 1/16 in Overall Length, Gray