General description The VMC ventilation grille is a round, adjustable air vent designed for both indoor and outdoor use. Made from durable 316 stainless steel, it features a polished surface that is resistant to corrosion, ensuring longevity and sturdiness. With a diameter of 125mm (5 inches) and four drill holes (3.5mm), this vent is easy to install and allows for adjustable air volume to meet your ventilation needs. Technical specifications Material: 316 stainless steel Diameter: 125mm (5 inches) Drill holes: 4 holes (3.5mm) Usage Suitable for heating or ventilation in boats, mobile homes, or caravans Can be used for indoor exhaust and optimal ventilation in garages Adjustable ventilation to change fresh air according to your needs Other information