THIS 24" DIAMETER INDUSTRIAL FAN FEATURES A HEAVY-DUTY PEDESTAL BASE AND HAND SCREW KNOB FOR EASY, TOOL FREE HEIGHT ADJUSTMENTS. THIS PEDESTAL FAN HAS A TOP OF FAN HEIGHT ADJUSTMENT FROM 58-75"H. POWERED BY A RUGGED 3-SPEED, 7525/6060/4550 CFM, 1/2 HP OPEN AIR OVER PSC-TYPE BALL BEARING MOTOR. OSCILLATING FAN MOTION DISTRIBUTES AIRFLOW IN A 80 DEGREE SWEEP AND ALLOWS FIXED FAN POSITIONING. GUARDS SAFELY ENCLOSE 3 ALUMINUM BLADES THAT ARE PRECISION BALANCED FOR OPTIMUM PERFORMANCE. 18'L SJT HARD SERVICE TYPE CORD WITH 3-PRONG PLUG. THIS UNIQUE FEATURE OF 18'L POWER CORD HELPS AVOID THE USE OF ADDITIONAL EXTENSION CORDS. MEETS OSHA AND UL507 STANDARDS, UL, AND CUL LISTED. THIS PRODUCT HAS LIMITED WARRANTY OF 1 YEAR. HORSEPOWER RATING BASED UPON MAXIMUM SPEED/LOAD.