Frost King's 12"x2"x15' Fiberglass & Foil Duct Insulation offers a 4.3 R-Value, effectively reducing energy loss and saving you money on utility bills. It minimizes vibration and can be securely wired or taped in place, making installation a breeze. This versatile insulation is suitable for heating and cooling pipes, ducts, as well as auto hoods and trunks, ensuring optimal temperature regulation in various applications.