CENTRIFUGAL DOWNBLAST ROOF EXHAUST FAN, DRIVE TYPE BELT DRIVE, ASSEMBLY UNASSEMBLED, WHEEL DIAMETER 14 3/4 IN, BASE DIAMETER NOT APPLICABLE, BASE LENGTH 26 IN, BASE WIDTH 26 IN, BASE SHAPE SQUARE, NAMEPLATE VOLTAGE 115/208-230V AC, PHASE 1, MOTOR HORSEPOWER 1/4 HP, EXHAUST AIRFLOW @ 0.000 IN SP 1,994 CFM, FOR HIGH-STATIC PRESSURE APPLICATIONS NO, HIGH-EFFICIENCY MOTOR NO, FOR AIR TYPE FLAMMABLE VAPOR, INCLUDES DRIVE PACKAGE YES, INCLUDES MOTOR YE