Duct Reducer For Nominal Duct Diameter 10 in 11 in Inlet Diameter 11 in Inside Diameter 11 in Overall Length 7 in Product Type Reducer Weight 3.5 lb Material Thickness 22 ga Maximum Pressure Rating 42 in wc Maximum Temperature Rating 390 Degrees F Material Steel Seal Material Nitrile Standards Not Applicable Shape Round Gas Appliance Category Not Applicable Maximum Airflow 4 620 cfm Outlet Diameter 10 in Overall Height 9 in Overall Width 11 in End Type Quick-Fit Color Silver