GoVets offers Ductwork Venting Fittings and Caps in the HVAC and Refrigeration category to help customers complete their projects. Flexible ducts are a type of product in this sub-category that are used to connect air supply outlets to the air handler. They are made of flexible materials such as fiberglass, plastic or metal and are designed to be easily routed around obstacles. Shop today to find the right flexible ducts for your project.