Machine Adapter For Nominal Duct Diameter 16 in Inlet Diameter 15 7/8 in Material Steel Product Type Machine Adapter Material Thickness 20 ga Overall Length 5 1/2 in Maximum Pressure Rating 42 in wc Weight 3.2 lb For Duct Height 16 in For Duct Width 16 in Overall Width 16 in Minimum Pressure Rating 2 in wc Shape Straight Outlet Diameter 16 in Overall Diameter 16 in Overall Height 16 in End Type Quick-Fit Adapter Type Machine Adapter