Round ventilation grille, adjustable ventilation opening, stainless steel air inlet and outlet

Description Durable Material: Ventilation grille made from high-quality materials. Made of 316 stainless steel, polished surface, wear-resistant and corrosion-resistant, sturdy and durable. Dimensions: The round ventilation slot has a diameter of 125 mm (5 inches), 4 holes (3.5 mm), and is easy to install. Install it, and the airflow is adjustable to your needs. Adjustable Ventilation: Our air supply can be used at any time. Suitable for heating or ventilating a boat, camper van, or caravan, with adjustable ventilation to modify the fresh air supply as needed. Application: The round ventilation grille can be used both indoors and outdoors. An outdoor grill for anyone who needs adjustable ventilation, depending on the food being grilled. Garages can also be optimally ventilated with these ventilation vents.