The Mueller Streamline R-6.0 Silver Double Ply Black Poly Insulation offers superior thermal resistance with an R-value of 6.0. This insulation is crafted from high-quality materials, featuring a double ply design that enhances durability and performance. Measuring 3 inches in thickness, it is ideal for insulating pipes in HVAC systems, plumbing, and refrigeration applications. The black poly exterior is designed to withstand moisture and UV exposure, ensuring longevity. This product meets relevant industry standards, making it a reliable choice for both residential and commercial projects.