Simple, effective way to insulate pipes of all diameters. They are also ideal for overwrapping electric heat cables used to prevent water pipes from freezing. The kits consist of a roll of 1/2″ thick fiberglass plus a length of plastic vapor barrier overwrap. Brand Name: Frost King Width: 6 in. Length: 25 ft. R Value: 1.6 Facing: Unfaced Insulation Type: Fiberglass Product Type: Pipe Insulation Wrap Roll or Batt: Roll Coverage Area: 12.5 sq ft Formaldehyde Free: Yes Vapor Retardant: Yes Thickness: 1/2 in.