90 Degree Elbow For Nominal Duct Diameter 4 in Material Stainless Steel Overall Length 14 in Product Type Long Radius Tubed Elbow Material Thickness 14 ga Weight 1 lb Maximum Pressure Rating 42 in wc For Duct Height 4 in Shape Elbow End Type Rolled Edge For Duct Width 4 in Maximum Airflow Not Applicable Inside Diameter 4 in Minimum Pressure Rating 2 in wc Color Silver Outlet Diameter 4 in Overall Height 4 in Centerline Radius 2 1/2 in Angle 90 Degrees