The Mueller Streamline FB116 07 25 is a grey double ply black poly insulation with an R-value of 6.0, designed for effective thermal performance in HVAC systems. This product features a durable black polyethylene construction that provides excellent moisture resistance and longevity. Its dimensions are tailored for a perfect fit in standard installations, ensuring ease of use. The grey finish adds a modern touch while maintaining compliance with industry standards for safety and performance. Ideal for both residential and commercial applications, this insulation solution enhances energy efficiency and reduces heating and cooling costs.