Exhaust Fan, Commercial Direct Drive, Blade Dia. 24 in, CFM @ 0.000-In. SP 5,216 cfm, CFM @ 0.125-In. SP 4,622 cfm, CFM @ 0.250-In. SP 3,604 cfm, CFM @ 0.375-In. SP 2,968 cfm, Sones @ 0.000-In. SP @ 5 Ft. 18, Sones @ 0.125-In. SP @ 5 Ft. 20, Max. Ambient Temp. (F) 104 Degrees F, Fan Voltage 115/230V AC, 60 Hz, 1 Phase, Exhaust/Supply Fan Motor HP 1/3 hp, Motor RPM 1,100 RPM, Motor Enclosure Totally Enclosed Air Over, Motor Insulation Class B, Bearing Type Ball, Full Load Amps 3.3/1.8