Dimensions:250*250*90mm Excellent performance ,lower noise and competitive price,highest air flow ! Descriptions:1.Dimensions: 250×250×90mm 2.Bearing type :Ball bearing3.Voltage :110V (other voltage :220V)5.Weight: 1780g6. Noise: 48/56 dBA7.Current :0.45/0.36Amp8.Air Flow :480/550CFM9.Static Pressure :0.24/0.28Inch-H2O10.Frequency :50/60HZ Please note :1.All our prices are factory price .2. We ...