Duct Wrap, Overall Width 12 in, Overall Length 15 ft, Thickness 1 in, Material Cotton, Jacket Material Foil, Insulation Value 4, Insulation Density 1.6 lb, Product Type Duct Insulation, Color Silver, Maximum Temperature Rating 150 Degrees F, Minimum Temperature Rating 35 Degrees F, Material Thickness 1 in, Series Not Applicable, Inside Diameter 12 in, Standards ASTM E 408