General description AlwaysH Round Ventilation Grille is an adjustable air vent designed for both air inlet and exhaust applications. Made from durable 316 stainless steel, it features a polished surface that ensures corrosion resistance and longevity. This versatile grille is suitable for various environments, including boats, mobile homes, caravans, and garages, providing effective ventilation and improved air circulation. Technical specifications Diameter: 125mm (5 inches) Drill holes: 4 holes (3.5mm) Material: 316 stainless steel Compatibility and accessories Ideal for yachts, boats, campers, roller shutters, and ventilation panels Installation Easy to install with 4 drill holes Usage Adjustable ventilation for indoor exhaust and fresh air circulation Can be used in garages and outdoor settings Other information Note: Manual measurements may allow for an error of 1-3 cm Color differences may occur; refer to the actual item received Includes 2 pieces of round air vent grille