Centrifugal Upblast Roof Exhaust Fan, Application Industrial and Commercial Buildings, Restaurants, Schools, Drive Type Belt Drive, For Air Type Kitchen Air, Base Diameter 22 1/8 in, Base Width Not Applicable, Base Length Not Applicable, Base Shape Round, Maximum Static Pressure 1 1/2 in wc, Exhaust Airflow @ 0.000 in SP 3,996 cfm, Nameplate Voltage 208-230/460V AC, Phase 3, Motor Horsepower 1 hp, Assembly Unassembled, Number of Speeds 1, Housing Material Aluminum, Wheel Material Aluminum