Specifications: Diameter of the fan : 250mm (9.85 inch) Power supply: AC:220v/50-60hz Watts:320W Speed (rpm): 2800r/min Air delivery:43m'/min（2580m³/h) Noise: 71db(a) Wind pressure:294pa Package Content: 1 x 9.85" ventilator blower fan With 10m PVC Duct.
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