General description The AlwaysH Round Ventilation Grille is designed for adjustable ventilation, made from durable 316 stainless steel with a polished surface for corrosion resistance. This versatile air vent is suitable for both indoor and outdoor applications, allowing for optimal air circulation in various environments such as boats, mobile homes, caravans, and garages. Technical specifications Diameter: 125mm (5 inches) Drill holes: 4 holes (3.5mm) Usage Ideal for indoor exhaustion and ventilation needs. Adjustable air volume to meet specific requirements. Can be used in garages for optimal ventilation. Other information Manual measurements may allow for a 1-3cm error. Color may vary due to lighting and display differences.