A new brochure presents the FlexFlow Elbow™, a product designed to maximize efficiency in flexible duct installations. The elbow installs over the duct at diffusers and round taps using an adjustable strap system, similar to a zip tie. It is secured in place without tape or fasteners, and no tools are required. One size fits ducts ranging from 6 to 16 in. It is UL listed for return air plenum installations. According to the manufacturer, the integrity of the vapor barrier and insulation jacket remain intact.
Thermaflex, 528 Carwellyn Rd., Abbeville, SC 29620; 800-459-4822; www.flexflowelbow.com (website).