Drive Train To characterize our drive train in one word would be "heavy". Drive shafts of 1" material allow for larger cast iron pillow block bearings to be used giving long life. Large pulleys allow for longer belt life and better operation.	Belt Tighteners All belts stretch, the question is, who checks for slippage? Why spend big money on a high tech fan only to lose that efficiency months later to improperly tightened belts. All AP belt drive fans come standard with an automatic belt tightener. Less hassle and continued performance month after month.	Fiberglass Propellers AP props are carefully balanced to provide smooth and efficient operation. Constructed from a strong composite fiberglass blend, these props also provide a much longer life compared to plastic, steel, or cast aluminum props.	Winter Closure Designed for the coldest weather, these insulated panels seal out even the most extreme conditions found during the winter. Available in 24", 36", 50", 54" Fans

Call for details on Quiet Series

AP is pleased to announce the introduction of the Competitor Series 54" diameter' High Performance belt drive ventilation fan. Production and shipment of this fan is slated to begin in Aprll2007, orders can be placed now!

Features Include:

• A durable and aerodynamic fiberglass housing and discharge cone backed by a limited life-time warranty
• A high perfonnance stainless steel propeller
• A PVC shutter included with fan. (part # PS-59C)
• A high efficiency 1.75 HP motor in single or three phase
• An automatic belt tensioning system
• Heavy gauge, corrosion resistant aluminum drive train support
• Stai1lle stgel bardware
• An optional winter closure panel (Part # 20-0697, List Price $ 175.00)

NOTE: The Competitor Series 54" fan is replacing the FS52CL16SA Boss 52 which is currently being phased out of production. Please note that the Competitor 54 rough opening is slightly larger than the Boss 52.