This durable, weather-resistant Replacement Vent Hood from Deflecto is a 4 in. wide-mouth vent hood. It includes a removable bird and rodent guard. The vent closure is designed for maximum airflow and is self-cleaning with wind or rain4" wide-mouth vent hood. Removable bird & rodent guard. Vent closure designed for maximum airflow. Durable & weather-resistant. White.