CENTRIFUGAL DOWNBLAST ROOF EXHAUST FAN, DRIVE TYPE BELT DRIVE, ASSEMBLY UNASSEMBLED, WHEEL DIAMETER 11 IN, BASE DIAMETER NOT APPLICABLE, BASE LENGTH 22 IN, BASE WIDTH 22 IN, BASE SHAPE SQUARE, NAMEPLATE VOLTAGE 115/208-230V AC, PHASE 1, MOTOR HORSEPOWER 1/4 HP, EXHAUST AIRFLOW @ 0.000 IN SP 1,386 CFM, FOR HIGH-STATIC PRESSURE APPLICATIONS NO, HIGH-EFFICIENCY MOTOR NO, FOR AIR TYPE FLAMMABLE VAPOR, INCLUDES DRIVE PACKAGE YES, INCLUDES MOTOR YES, M