Round Ventilation Grille, Adjustable Air Vent, Stainless Steel Air Inlet and Outlet

Durable Material: Ventilation Grille Made from 316 stainless steel, polished surface, corrosion resistant, sturdy and durable. Size: The round ventilation vent measures 125mm (5 inches) in diameter, with 4 pre-drilled holes (3.5mm), easy to install; and the airflow is adjustable to meet your needs. Adjustable Ventilation: Our air intake can be used for indoor exhaust ventilation. Suitable for heating or ventilating a boat, mobile home, or caravan. Adjustable ventilation allows for fresh air exchange as needed. Application: The round ventilation grille can be used both indoors and outdoors for anyone needing adjustable ventilation. Heat can be generated according to the temperature of grilled food. Even garages can be optimally ventilated with these ventilation rosettes.