The F114 04 25 Double Ply Black Poly Flex Duct R-4.2 by Mueller Streamline is a high-quality flexible duct designed for HVAC applications. This duct features a double-ply construction, providing excellent durability and insulation with an R-value of 4.2. Measuring 4 inches in diameter, it is ideal for both residential and commercial ventilation systems. The black poly material ensures resistance to moisture and wear, making it suitable for various environments. This flexible duct is easy to install and compatible with standard HVAC systems, ensuring efficient airflow and temperature control.
