160mm (6.3in) to 366mm (14.4in) lengths. AC shaded type motor, temperature resistant aluminum alloy, ball or sleeve bearings.Maximum Pressure: 0.7mmAq (0.028inH2O) to 2.6mmAq (0.10inH2O), Maximum Air Flow: 21CFM (0.6m3/min) to 70CFM (2.0m3/min) CE, UL, TUV listed.