Collar W/Damper, 8 in Duct Dia, Galvanized Steel, 24 GA, 10 in W x

Duct Collar w/Damper, For Nominal Duct Diameter 8 in, Material Steel, Overall Length 5 in, Material Thickness 24 ga, Weight 1.89 lb, Maximum Pressure Rating 3 in wc, For Duct Height 6 in, Shape Round, End Type Crimped, For Duct Width 8 in, Gas Appliance Category Not Applicable, Inlet Diameter 8 in, Damper Type Low Leakage, Inside Diameter 8 in, Flange Outside Diameter 1 in, Outside Diameter 8 in, Flange Inside Diameter 8 in, Color Silver, Outlet Diameter 8 in, Overall Height 6 in