Model: 2RB 910-7AT37 Freq: 50 Hz Airflow: 1050 m3/h Pressure: +460 mbar Vacuum: -360 mbar Inlet/Outlet: G 4 inch Dimension(L*W*H): 644x550x624 mm Stage: Single Stage Power: 18.5 Kw TH.CL: IP55 IN.CL: F or H N.weight: 204 kg Sound: 74 dB(a)