Downblast Ventilator Drive Type - Roof Ventilators Direct Drive Duty Rating - Roof Ventilators Standard Drive Package With Motor Included Yes Voltage - Roof Ventilators 115 Base Size - Roof Ventilators 15-1/2 in x 15-1/2 In. Number of Speeds 1 Mounting Location - Roof Ventilators Roof Wall Wheel Dia 7-1/2 In. CFM @ 0.000-In. SP 227 CFM @ 0.125-In. SP 213 1 Phase 60 Hz Max Operating Amps .8 RPM 2700