HYKE [Upgrade Airflow] Removable Roof Vent Cover, 6 Inch Roof Vents for Houses, 6'' Exhaust Vent Wall Vent for Ventilation with Damper and Two

【Enhanced Ventilation】: Compared to standard roof vents, this new roof vent with damper includes 2 additional small vents the sides and flat streamlined design, boosting ventilation efficiency to 85% for better in efficient airflow needs. 【Waterproofing 】: Our 6 inch roof exhaust vent raises the height of the flange at the bottom of the check to 0.6in and includes designed strip the external cover to effectively or snow from entering. 【 】 Galvanized steel ensures durability and extended use. The 6-inch roof vent grid of approximately 3mm to effectively the entry of small animals or birds. 【Broad Applications】Engineered for optimal airflow and efficiency, our vents can be with kitchen hoods, bathroom exhaust fans, or other rooftop ventilation , as as for wall mounts, with dryers or other HVAC . 【Installation】The package includes 4 screws for , with one spare, making it to remove for cleaning; bottom screws are not included. There are 4 holes in the panel to installation of the 6" bathroom exhaust fan the roof.