Brand: Crompton Greaves. Series: Transair. Product Name: Exhaust Fan. Model Code: TRAEXF300G. Warranty: Standard Warranty Applicable Provided By Crompton In India. Size (mm): 300mm. Size (Inch): 12Inch. Sweep: 300mm. Power: 70W. Speed: 300rpm. No. Of Blade: 4. Air Delivery: 1600 CMH. Country Of Origin: India. Material: Metal. Color: Grey. Bird screen for protection against bird and foreign matter.