Continental Fan Manufacturing Inc. (Buffalo) has designed a new line - the Aerofan propeller fan, which features a cast aluminum motor mount and an integral safety guard that allows motor wiring without guard removal. Propellers are available with a choice of five or 10 blades of either glass-reinforced polypropylene or pressure cast aluminum, mounted in a cast aluminum hub. The Aerofan is available in four configurations. Seven sizes ranging from 12 in. through 27 in. deliver airflows to 10,500 cfm and pressures to 2 1/2 in. wg.