Angle Flange Adapter For Nominal Duct Diameter 8 in Inlet Diameter 8 1/8 in Material Steel Product Type Angle Flange Adapter Material Thickness 22 ga Overall Length 1 1/8 in Maximum Pressure Rating 42 in wc Weight 1.9 lb For Duct Height 8 in Flange Inner Diameter 8 1/8 in For Duct Width 8 in Flange Outer Diameter 10 5/8 in Inside Diameter 3/8 in Number of Holes on Flange 6 Overall Width 8 in Bolt Circle Diameter 9 1/2 in Minimum Pressure Rating 2 in wc Shape Straight