The Mueller Streamline F114 is a 9-inch by 50-foot double ply black poly flex duct with an R-value of 4.2, designed for optimal airflow and thermal insulation in HVAC systems. This duct is constructed from high-quality materials, ensuring durability and flexibility for easy installation. It meets industry standards for performance and safety, making it suitable for both residential and commercial applications. The lightweight design allows for efficient handling and installation in various configurations.
