Exhaust Fan, Medium Duty Direct Drive, Propeller Dia. (In.) 8, CFM @ 0.000-In. SP 454, CFM @ 0.125-In. SP 319, Sones @ 0.000-In. SP @ 5 Ft. 6.9, Voltage 115, 60 Hz, 1 Phase, Full Load Amps 1.8, Motor HP 1/30, Totally Enclosed Air Over, Bearing Type Sleeve, Motor RPM 1725, Max. Ambient Temp. (F) 104, Height (In.) 12, Width (In.) 12, 12, 8-3/8, 1, 1-3/4, 8-3/8, Mounting Position Horizontal, Frame Material Galvanized, Steel, Propeller Material Aluminum, Number of Blades 5 RestrictionsNote: Automatic shutters recommended; see Index under Shutters, Exhaust. On DrillSpot.com , search by DrillSpot Item Number and click the Optional Accessories tab. OSHA-complying guards (included with select models) are required when a fan is installed within 8 ft. of floor, working level, or within reach of personnel. Review OSHA codes and UL standards. See Index under Guards, Fan. Commercial UnitsQuietly exhaust high volumes of air. Great for ventilating schools, offices, storage facilities, and light manufacturing and assembly areas.Direct-Drive Venturi Exhaust FansGalvanized frame and finish.UL and C-UL Listed.Mount: horizontal With Intake Guards, vertical or horizontal Without Intake Guards Motors: totally enclosed air over, with Class B insulation Ball bearings, except sleeve bearings on 10D952 to 10D956 Max. ambient temp.: 104 F Aluminum propellers Optional speed controls sold separately