Ball Joint, For Nominal Duct Diameter 4 in, Inlet Diameter 4 in, Product Type Quick-Fit Ball Joint, Application Commercial, Overall Length 9 1/2 in, Weight 10.19 lb, Material Steel, Maximum Pressure Rating 42 in wc, Material Thickness 20 ga, Overall Height 4 in, Outlet Diameter 4 in, Maximum Airflow Not Applicable, Overall Width 4 in, Shape Straight, Duct Compatibility Round, Color Silver, Maximum Temperature Rating 390 Degrees F, Minimum Pressure Rating 2 in wc, Inside Diameter 4 in