AXIAL DOWNBLAST ROOF SUPPLY FAN, MOUNTING LOCATION ROOF, ASSEMBLY UNASSEMBLED, BLADE DIAMETER 20 IN, HOUSING MATERIAL STEEL, EXHAUST AIRFLOW @ 0.000 IN SP 3,133 CFM, FOR HIGH-STATIC PRESSURE APPLICATIONS NO, HIGH-EFFICIENCY MOTOR NO, MAXIMUM STATIC PRESSURE 3/8 IN WC, MOTOR ENCLOSURE OPEN DRIPPROOF, MOTOR HORSEPOWER 1/4 HP, NAMEPLATE VOLTAGE 208/230/460V AC, NUMBER OF SPEEDS 1, PHASE 3, MAXIMUM INLET AIR TEMPERATURE 104 DEGREES F, NUMBER OF BLADE