Roof Vent Cap - Roof Vents 4 Inch Galvanized Steel Bathroom 4 Roof Exhaust Vent for Ventilation System-with Damper, Black

Excellent AirflowThis 4-inch roof vent with a backdraft damper maintains an airflow of up to 75%, while other products on the market often have airflow below 50% and provide poor ventilation. Corrosion ProtectionMade from premium galvanized steel for strength and extended service. The high-performance polyester powder coating delivers strong corrosion resistance and reliable protection. Home GuardThe 4-inch roof vent comes with a 120mm x 90mm mesh cover featuring a grid gap of about 3mm to effectively block the entry of small animals or birds. Widely UsedThis roof dryer vent is engineered for optimal airflow and protection. It can be used with a 4-inch duct and bathroom exhaust fan to create a roof ventilation and exhaust system, and can also be installed vertically on the wall as a wall vent. Easy InstallationThe 4-inch vent includes a pipe extension positioned under the flange for connecting to flex ducting. There are four holes in the panel to assist with secure installation on a 4" bathroom exhaust fan roof jack