Blower Radial Blade Belt Drive With Drive Package Wheel Dia 36 1/2 In CFM @ 400-In SP 10 915 CFM @ 500-In SP 9480 CFM @ 600-In SP 7463 85 dBA @ 5 Feet Max Inlet Temp 250 Deg F Voltage 208-230/460 3 Phase 60 Hz Motor HP 20 Blower RPM 981 Housing Height 56 7/8 In Housing Width 17 In Housing Length 54 In Discharge Height 21 In Discharge Width 17 In Inlet Dia 21 1/4 In