The Mueller Streamline F114 is a 7-inch by 50-foot double ply black poly flex duct with an R-value of 4.2, perfect for HVAC systems requiring flexible ducting solutions. This product is made from robust materials that provide excellent insulation and airflow efficiency. Its lightweight design facilitates easy handling and installation in tight spaces. Compliant with industry standards, this duct is ideal for both residential and commercial applications, ensuring reliable performance and energy efficiency.
