Ductmate Industries, Inc. is the largest heating, ventilation and air conditioning (HVAC) accessories manufacturer in North A ... merica, and that makes it one of the largest on Earth. Ductmate products are sold through a network of over 400 distributors in the U.S.A. and through a consortium of manufacturers and distributors around the world. Ductmate makes it easy to find, order and take delivery of its superior products. We design and produce a myriad of HVAC connectors, access doors, duct sealants and support systems. Ductmate is constantly adding items to accommodate new requirements and applications. To help you make the right choice, we offer detailed specifications of all our products on our website, www.ductmate.com. A printed version of Ductmate's product specifications are also available through our distributors. read more