The Spiral Diffuser’s design allows for direct mounting to round metal ductwork. According to the manufacturer, the product eliminates the need to construct and attach separate mounting assemblies, which results in a precise fit, efficient performance, and a clean, low-profile appearance. The diffuser is available in single- or double-deflection vanes, with a slot-style face front. Sizes range from 10 to 36 inches long, 4 to 12 inches wide, and for pipe radii from 6 to 30 inches. The diffuser is constructed of extruded aluminum with a standard satin-anodized or bright-white finish.

Hart & Cooley Inc., 500 E. Eighth St., Holland, MI 49423; 800-433-6341; (website).

eProduct #198