Duct Reducer For Nominal Duct Diameter 5 in 7 in Inlet Diameter 7 in Inside Diameter 7 in Overall Length 8 in Product Type Reducer Weight 2 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 1 870 cfm Outlet Diameter 5 in Overall Height 10 in Overall Width 7 in End Type Quick-Fit Color Silver