General description The Exterior Wall Vent Hood is a versatile stainless steel air grille cover designed for efficient duct ventilation. It is suitable for various applications including bathroom vents, air conditioning units, kitchen fans, heat transfer systems, gas and electric dryers, and cooker hood extractors. This louvered vent cover is compatible with 4, 5, and 6-inch vent hoses, ensuring maximum exhaust airflow. Technical specifications Material: 304 stainless steel Size: 4 inch Color: Silver Package Contents: 1x Ventilation Cover, 4x screws Measurement allowed error: +/- 1-3 cm Installation Equipped with 4 screws for easy installation. Insert the vent hose into the louvered vent cover. Mount it using screws and silicone seal. Use a marker to mark the screw hole positions and drill holes with an electric drill. Installation can be completed in just minutes. Usage Automatically opens and closes the flaps when pressure is applied from inside. Shuts the louvers when the dryer