TUBEAXIAL FAN, DRIVE TYPE BELT DRIVE, INCLUDES DRIVE PACKAGE YES, INCLUDES MOTOR YES, BLADE DIAMETER 12 IN, NAMEPLATE VOLTAGE 208-230/460V AC, PHASE 3, MOTOR HORSEPOWER 1/2 HP, AIRFLOW @ 0.000 IN SP 1,904 CFM, MAXIMUM NOISE LEVEL @ 5 FEET 42 SONES, ASSEMBLY UNASSEMBLED, FOR AIR TYPE CLEAN AIR, BLADE MATERIAL ALUMINUM, HOUSING MATERIAL STEEL, NUMBER OF BLADES 4, NUMBER OF SPEEDS 1, MOTOR ENCLOSURE TOTALLY ENCLOSED FAN COOLED, STANDARDS AMCA, BOLT