312 mm Shutter Exhaust Fan Wall Mounted 1250 CFM Automatic Louvers, Sturdy Steel Housing, Low Noise, AC Motor, Ventilation and Cooling for Attic,

312 mm Shutter Exhaust Fan Wall Mounted 1250 CFM Automatic Louvers, Sturdy Steel Housing, Low Noise, AC Motor, Ventilation and Cooling for Attic, Garage, Barn, Greenhouse, Workshop, Silver Electrostatic Coating Spiral Fan Blades Weather-Resistant Structure Sturdy Housing Flexible Installation Broad Compatibility Airflow: 1250 CFM,Speed: 1400 r/min,Air Speed: 6.5 m/s,Noise: 60 dB or Less,Item Model Number: HA-300M-220,Louver Opening Angle: 50° or Greater,Product Dimensions (L x W x H): 14.6 x 14.6 x 7.5 in / 370 x 370 x 192 mm,Net Weight: 8 lbs / 3.64 kg,Power: 34 W,Rated Voltage: 230V 50Hz