Voltage (VDC) Diameter Airflow Model Number (in.) (mm) (cfm @ free air) 27 2.25 57.15 25 SS DC Blower 27 2.250 57.15 25 MM DC Blower 27 2.625 66.67 58 LL DC Blower     Voltage (VAC) Diameter Airflow Model Number (in.) (mm) (cfm @ free air) 200 2.25 57.15 30 SC AC Blower 115 2.25 57.15 30 27 2.25 57.15 30 200 2.25 57.15 45 115 2.25 57.15 45 27 2.25 57.15 45 200 2.25 57.15 50 115 2.25 57.15 50 27 2.25 57.15 50 115 2.625 66.67 20 MC AC Blower 115 2.25 57.15 37 115 2.625 66.67 58 115 2.625 66.67 62