The FB118 12 25 is a grey double ply black poly insulation product with an R-value of 8.0 from Mueller Streamline. This insulation is designed for high thermal efficiency, making it suitable for various HVAC applications. Its double ply construction enhances durability and provides excellent resistance to moisture and environmental factors. The grey finish offers a modern aesthetic while ensuring effective heat retention. Compliant with industry standards, this product is a reliable choice for both residential and commercial use.