Duct Reducer For Nominal Duct Diameter 3 in 5 in Inlet Diameter 5 in Inside Diameter 5 in Overall Length 8 in Product Type Reducer Weight 1.5 lb Material Thickness 22 ga Maximum Pressure Rating 42 in wc Maximum Temperature Rating 1 100 Degrees F Material Stainless Steel Seal Material Nitrile Standards Not Applicable Shape Round Gas Appliance Category Not Applicable Maximum Airflow 955 cfm Outlet Diameter 3 in Overall Height 8 in Overall Width 5 in End Type Quick-Fit