General description Adjustable ventilation grille made of high-quality ABS, designed for effective air flow management. Technical specifications Diameter: 150 mm Height of duct: 75 mm Installation Can be mounted on walls or ceilings. Usage Ideal for use in bathrooms, offices, exhaust chambers, and ventilation systems. Other information The adjustable panel allows for air flow control by turning the knob. The panel and black duct are removable for easy cleaning and maintenance.