Ball Joint For Nominal Duct Diameter 12 in Inlet Diameter 12 in Product Type Quick-Fit Ball Joint Application Commercial Overall Length 15 1/4 in Weight 28.86 lb Material Steel Maximum Pressure Rating 42 in wc Material Thickness 16 ga Overall Height 12 in Outlet Diameter 12 in Maximum Airflow Not Applicable Overall Width 12 in Shape Straight Duct Compatibility Round Color Silver Maximum Temperature Rating 390 Degrees F Minimum Pressure Rating 2 in wc Inside Diameter 12 in