200mm Adjustable Ventilation Grille. Constructed from durable ABS plastic. The air inlet can be adjusted by turning the knob. Detachable black tube for easy cleaning. Perfect for ventilation and exhaust applications. Product Vent Vent Suitable for all clothing dryer ventilation pipes, bathroom ventilation openings, air conditioning systems, kitchen fans, household wall ventilation openings, heat transfer and ventilation systems, extractor hoods, and various other devices for industrial use. The high-quality ABS plastic cover, panel, and duct parts are removable, making daily cleaning very convenient. Can be easily installed on ceilings or sidewalls. Installed as an air inlet or outlet, the exhaust hood must cover the ventilation system to prevent rodents and insects from entering the home. This wall inlet features a grille guard and allows for airflow adjustment by rotating the knob. Quality Materials Ventilation openings are made from high-quality ABS. We offer various sizes of exhaust openings for customer selection. Airflow Is Adjustable With an adjustable panel, airflow can be managed by rotating the button, and the panel can be completely closed. Easy to Install and Clean The detachable black sleeve is easy to clean and maintain. It can be wall or ceiling mounted, making it ideal for bathrooms, offices, room evacuations, and general ventilation use.