Angle Flange Adapter For Nominal Duct Diameter 9 in Inlet Diameter 9 in Material Stainless Steel Product Type Angle Flange Adapter Material Thickness 22 ga Overall Length 3 1/2 in Maximum Pressure Rating 42 in wc Weight 3.25 lb For Duct Height 9 in Flange Inner Diameter 9 1/8 in For Duct Width 9 in Flange Outer Diameter 11 5/8 in Inside Diameter 1/2 in Number of Holes on Flange 6 Overall Width 9 in Bolt Circle Diameter 10 5/8 in Minimum Pressure Rating 2 in wc Shape Straight