GoVets offers a wide selection of Ductwork Venting Fittings and Caps in the HVAC and Refrigeration category to help customers complete their projects. Duct Insulation is a type of product used to reduce heat loss or gain and control condensation from the ductwork. It is designed to fit around the ductwork and is available in a variety of sizes and materials. Shop today to find the right Duct Insulation for your project.