CENTRIFUGAL DOWNBLAST ROOF EXHAUST FAN, DRIVE TYPE BELT DRIVE, ASSEMBLY UNASSEMBLED, WHEEL DIAMETER 33 1/2 IN, BASE DIAMETER NOT APPLICABLE, BASE LENGTH 46 IN, BASE WIDTH 46 IN, BASE SHAPE SQUARE, NAMEPLATE VOLTAGE 208-230/460V AC, PHASE 3, MOTOR HORSEPOWER 1 1/2 HP, EXHAUST AIRFLOW @ 0.000 IN SP 11,232 CFM, FOR HIGH-STATIC PRESSURE APPLICATIONS NO, HIGH-EFFICIENCY MOTOR NO, FOR AIR TYPE CLEAN AIR, INCLUDES DRIVE PACKAGE YES, INCLUDES MOTOR YES,