MRCOOL M14DSR2436A Signature Series Square-to-Round Adapter Kit is designed for 2–3 ton downflow HVAC applications, providing a secure transition from a 14-inch square duct connection to a round duct system. It connects directly to compatible air handlers or indoor HVAC units, helping create a smooth and properly aligned airflow path. This adapter simplifies duct installation and impr... https://www.partshnc.com/mrcool-signature-downflow-adapter-kit-m14dsr2436a