BELT DRIVEN AXIAL DOWNBLAST EXHAUST VENTILATOR, (LESS DRIVE PACKAGE), ROOF MOUNTING LOCATION, BASE WIDTH: 46", BASE LENGTH: 46", MAXIMUM INLET TEMPERATURE 120* F, HP RANGE 3/4 TO 1 1/2, RPM RANGE: 493 TO 621, SPEED CONTROL: NO, BEARING TYPE: REGREASABLE PILLOW BLOCK, PROPELLER DIAMETER: 36 ", PROPELLER MATERIAL: STEEL, HOUSING MATERIAL: SPUN ALUMINUM, APPLICATION: GENERAL CLEAN AIR, INCLUDES: NEMA 1 JUNCTION BOX, BASE HEIGHT: 1 3/4", SHAFT DIAMETER PROPELLER END AND SHEAVE END: 1 1/4", OVERALL DIAMETER: 58 5/8", OVERALL HEIGHT: 43 5/8", WEIGHT: 360 LBS, IN BULK, MADE IN USA