Genuine OEM Volkswagen Heater Box Water Drain Tube, part number 7P0820119. This tube is designed to effectively remove condensation and excess water from the vehicle's heater box assembly. It is installed within the heating and air conditioning system to prevent water accumulation. Made from durable rubber or plastic, it ensures a secure and leak-free drainage path. Using a genuine OEM drain tube guarantees the correct dimensions, material flexibility, and resistance to temperature fluctuations for reliable long-term performance.