Upblast Ventilator Application General Exhasut for any Commercial (Non Residential) Space Drive Type Belt Drive For Air Type Kitchen Air Emergency Smoke Clean Air Flammable Vapor Base Diameter Not Applicable Base Width 30 in Base Length 30 in Base Shape Square Maximum Static Pressure 1 3/4 in wc Exhaust Airflow @ 0.000 in SP 5 138 cfm Nameplate Voltage 208 to 230/460V AC Phase 3 Motor Horsepower 1 1/2 hp Assembly Assembled Number of Speeds 1 Housing Material Aluminum