The FB216 20 25 is a high-performance double ply black poly insulation with an R-value of 6.0, manufactured by Mueller Streamline. This insulation is designed for optimal thermal efficiency, making it suitable for a variety of plumbing and HVAC applications. The robust construction ensures durability and resistance to environmental factors, while the 20-inch by 25-foot size provides ample coverage for larger projects. This product meets industry standards for insulation, ensuring compliance and reliability in performance. Ideal for both residential and commercial installations, it helps reduce energy costs and improve system efficiency.