The Mueller Streamline FB116 08 25 is a high-performance grey double ply black poly insulation with an R-value of 6.0, engineered for optimal thermal efficiency in HVAC applications. Constructed from durable black polyethylene, this product offers excellent moisture resistance and durability. Its dimensions are designed for easy installation, making it a versatile choice for various settings. The modern grey finish not only enhances aesthetic appeal but also ensures compliance with industry standards for safety and performance. This insulation solution is perfect for both residential and commercial use, significantly improving energy efficiency.