Blind Flange, Raised Face, 3 in Nominal Pipe Size, Flanged x Blind, 7 1/2 in Flange Outside Diameter, 7/8 in Flange Thickness, Steel, Anodized, Class Class 150, For Pipe Schedule 40, 150 psi Maximum Operating Pressure, -29 Degrees to 425 Degrees F, Number of Bolt Holes 4, 3/4 in Bolt Circle Diameter, 5/8 in Bolt Hole Diameter