Imperial Duct Insulation Sleeve in Fiberglass - 4-in x 10-ft

This Imperial Duct Insulation Sleeve works as an energy-efficient insulation blanket suitable for heating, ventilation, and air conditioning systems. Specifically designed to insulate rigid or semi-rigid round ducts, it is an excellent method for reducing heat or cool loss and condensation build-up. The sleeve is made of a thick fiberglass insulation blanket enclosed in a strong, fiberglass-reinforced silver metalized outer jacket. The insulation sleeve measures 4-in x 10-ft is a UL Listed air duct which features an energy-efficient insulation R-value of 4.2. Check your local building codes prior to installation. Insulation blanket designed for insulating rigid or semi-rigid round ducts. Suitable for use with heating, ventilation, and air conditioning systems. Helps reduce heat or cool loss and condensation for energy efficiency. UL Listed Air Duct. Thick fiberglass insulation blanket with heavy-duty silver metalized outer jacket. Fiberglass insulation R-value: 4.2.