Windpro Exhaust Fan Wind Pro Fan : New! High Quality, Lowest Cost 50″ Fan USGR offers a wide variety of exhaust fans for many industries, engineered, designed and priced to meet all climates of the world. The Wind Pro 50″ fan uses high quality components and precise engineering to create a simple, high quality fan with optimal performance at the best price ever offered. All backed by the service and support that has made Aerotech the ventilation leader for over 55 years. Features Cast aluminum drive assembly utilizes enclosed automotive style bearing and comes with a 7 year limited warranty. Automotive style belt tensioner promotes top performance. Corrosion resistant stainless steel propeller, durable enough to withstand harsh environments. Fan housing features formed galvanized steel perimeter for added strength, rigidity and wide flange for easy installation. Single or 3 phase high efficiency motor. Option of plastic or aluminum shutter. The MONO-STRUT offers strength and durability in a simple design. Performance information: 50″ Belt drive fan complete with discharge cone, guard and inlet 0.0″ SP 0.05″ SP 0.10″ SP 0.15″ SP BESS Lab Test No. Catalog No. Shutter Material Motor HP Prop RPM Max BHP CFM CFM Watt CFM CFM Watt CFM CFM Watt CFM CFM Watt WF501TCP Plastic 1 500 1.27 25,400 25.1 23,900 22.5 22,400 20.1 20,400 17.5 03148 WF501TCY Aluminum 1 500 1.27 25,300 24.5 23,900 22.1 22,400 19.8 20,700 17.7 03149 WF5015TCP Plastic 1.5 580 1.74 28,000 19.6 27,000 18.0 25,800 16.4 24,400 14.9 03151 WF5015TCY Aluminum 1.5 585 1.80 28,100 18.6 27,100 17.1 25,800 15.6 24,500 14.3 03150 Notes: The ratings shown are based on tests and procedures performed at the BESS Lab, University of Illinois in accordance with ASHRAE Standard 51-1999. BHP values were not measured at the BESS Lab. The BHP values shown were derived from actual Watt measurements using motor efficiency values supplied by the motor manufacturers.