125mm Adjustable Ventilation Grille for Airflow Control

Durable Material: Air vent made from 316 stainless steel, polished surface, corrosion resistant, sturdy and durable for long-term use. Size: The round air vent measures 125mm (5 inches) in diameter with 4 drill holes (3.5mm), easy to install; air volume is adjustable to meet your needs. Adjustable Ventilation: Designed for indoor exhaust and incoming air, suitable for heating or ventilating boats, mobile homes, or caravans. Allows adjustable airflow to control fresh air intake. Application: The round ventilation grille is suitable for indoor and outdoor use where adjustable ventilation is required. Ideal for use in garages and other spaces requiring effective air circulation.