The Mueller Streamline R-6.0 Silver Double Ply Black Poly Insulation is designed for maximum thermal efficiency, boasting an R-value of 6.0. This insulation features a robust double ply construction that enhances its durability and effectiveness in reducing heat transfer. With a thickness of 3 inches, it is perfect for insulating pipes in both residential and commercial settings. The black poly exterior is resistant to moisture and UV rays, ensuring long-lasting performance. This product complies with industry standards, making it a reliable choice for various insulation applications.