Opening/closing damper prevents outside elements from entering the vent. Damper is spring loaded to keep damper closed when not in use. For 3-1/4″ x 10″ duct. Damper spring controlled. Aluminum. Mill finish.
The Imperial 4″ louvered vent cap is designed with a low profile flush mount and made of UV resistant paintable plastic. The louvers on this hood opens easily for maximum airflow and quiet operation.
The Imperial 4″ louvered vent cap is designed with a low profile flush mount and made of UV resistant paintable plastic. The louvers on this hood opens easily for maximum airflow and quiet operation.