Schedule 40 Socket Weld Flange, Raised Face, 4 in Nominal Pipe Size, 9 in Flange Outside Diameter, 15/16 in Flange Thickness, Stainless Steel, 316/316L, Class Class 150, Number of Bolt Holes 8, 7 1/2 in Bolt Circle Diameter, 3/4 in Bolt Hole Diameter