Centrifugal Upblast Roof Exhaust Fan Application Kitchens Drive Type Belt Drive For Air Type Kitchen Air Base Diameter Not Applicable Base Width 29 1/8 in Base Length 29 1/8 in Base Shape Square Maximum Static Pressure 1 1/4 in wc Exhaust Airflow @ 0.000 in SP 4 477 cfm Nameplate Voltage 208-230/460V AC Phase 3 Motor Horsepower 1 hp Assembly Unassembled Number of Speeds 1 Housing Material Steel Wheel Material Steel High-Efficiency Motor No