There are three sizes of the SHAMI VENTILATING FAN LEGIT 12" Exhaust Fan Legit available. 12 inches, electrostatically painted metal body, low power consumption, easy to clean, and simple to install in square wall openings. Size of opening: 35 x 35 cm square Delivery by air Speed rpm: 10% ± 1200 5% ± 1100 Source of power: 220V/50Hz w