Photo 1 of 4" Inch Collar Ducting Finishing Rosette Duct Metal Ceiling Valve/Vent Flange Hose Spigot Tube End (Steel, 4") Steel 4 Inch

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Photo 1 of 4" Inch Collar Ducting Finishing Rosette Duct Metal Ceiling Valve/Vent Flange Hose Spigot Tube End (Steel, 4") Steel 4 InchPhoto 2 of 4" Inch Collar Ducting Finishing Rosette Duct Metal Ceiling Valve/Vent Flange Hose Spigot Tube End (Steel, 4") Steel 4 Inch