Closed Cell Pipe Insulation; Type Flexible, Self-Seal, Roll; Pipe Size 3 Inch Iron/PVC; Insulation Thickness 1/2 Inch; Roll/Sheet Dimensions 3-1/2 Inch Inner Diameter x 36 Foot Length; Material ASTM C1427 Polymer Foam; Density 0 to 35 Pound per Cubic Foot; Color Black; Maximum Temperature Rating 210 Deg F; Minimum Temperature Rating -330 Deg F; Inclusions/Features Pre-Slit, Pre-Glued; Application Cold Water Plumbing, Chilled Water and Air Conditioning Lines; Applicable Standard OTCR, USDA, NFPA 90 A/B; R Value 2.5