Genuine OEM Audi Tube A Flange, part number 420819885A. This part acts as an adapter or connector, typically for a hose, and includes a flange for mounting or connection within the heating and air conditioning system. It is designed to ensure a leak-free connection and proper airflow or fluid transfer. Manufactured from durable materials to withstand system pressures and temperatures. Genuine OEM tube flanges ensure precise fitment and material compatibility, preventing leaks and maintaining system efficiency.