Angle Flange Adapter For Nominal Duct Diameter 6 in Inlet Diameter 6 in Material Steel Product Type Angle Flange Adapter Material Thickness 22 ga Overall Length 3 1/2 in Maximum Pressure Rating 42 in wc Weight 2.55 lb For Duct Height 6 in Flange Inner Diameter 6 1/8 in For Duct Width 6 in Flange Outer Diameter 8 5/8 in Inside Diameter 1/4 in Number of Holes on Flange 6 Overall Width 6 in Bolt Circle Diameter 7 1/4 in Minimum Pressure Rating 2 in wc Shape Straight