Carrier 337690-401 Rubber Elbow is a flexible connector designed to provide a secure transition between tubing or piping in compatible HVAC systems. It works by creating a tight, leak-resistant connection while accommodating slight movement and vibration, helping maintain proper airflow or fluid transfer during system operation. This rubber elbow is commonly used in Carrier air condit... https://www.partshnc.com/rubber-elbow-2