SUPPLY FAN W/DRIVE PACKAGE, ASSEMBLED UNASSEMBLED, BLADE DIAMETER 54 IN, BLADE MATERIAL STEEL, DRIVE TYPE BELT DRIVE, EXHAUST AIRFLOW @ 0.000 IN SP 44,535 CFM, FOR CUT-OUT HEIGHT 56 1/2 IN, FOR CUT-OUT WIDTH 56 1/2 IN, FRAME FINISH ZINC PLATED, FRAME MATERIAL STEEL, GUARD TYPE NONE, INCLUDES DRIVE PACKAGE, INCLUDES DEHUMIDISTAT NO, MAXIMUM AIRFLOW 44,535 CFM, MAXIMUM NOISE LEVEL 43 SONES