Supply Ventilator Centrifugal Belt Drive 2708 CFM @ 0.250-In SP 11.2 Sones @ 0.250-In SP Mounting Location Roof Housing Height 34 2/5 In Housing Length 34 2/5 In Housing Width 64 1/2 In Base Width 32 1/2 In Base Length 32 1/2 In Motor Voltage 208-220/440 3 Phase Motor HP 1/2 Fan RPM 535 Wheel Dia 15 1/2 In Discharge Length 16 In Discharge Width 18 5/8 In Bearing Type Sleeve Requires Roof Curb For New Installations Includes Washable Aluminum Filters