“HVAC Control Damper” is a 16-page brochure that presents the manufacturer’s extensive line of HVAC control and manual balancing dampers. Line drawings and photos illustrate the products featured. Information such as design and construction features and options and accessories are supplied. The brochure includes quick selection charts for volume control dampers and manual balancing dampers, damper performance testing criteria, and pressure drop data.

Greenheck, P.O. Box 410, Schofield, WI 54476-0410; 715-359-6171; 715-355-2399 (fax); www.greenheck.com

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