Frost King Foil Backed Fiberglass Pipe Wrap, 3"x1"x25' Fiberglass pipe insulation kit Simple, effective way to insulate pipes of all diameters Ideal for overwrapping electric heat cables used to prevent water pipe freezing 1-Inch X 3-Inch X 25-Feet Fiberglass Pipe Wrap Comes With A Vapor Barrier 1-Inch Thick Foil-backed Insulation, Which Cuts Wasteful Heat Loss On Hot Water Pipes Helps Keep The Cold Water Pipes From Sweating Simple, One-step Installation