Genuine OEM Audi Left Side Air Channel, part number 423819721. This interior air channel is designed to direct conditioned air from the HVAC system to specific vents within the cabin, ensuring effective climate control for occupants. It is positioned on the left side of the vehicle's interior. Weighing approximately 0.073 kg and measuring 0.248m in length, this channel provides precise airflow. Genuine OEM air channels ensure correct fitment, optimal airflow, and proper integration with the vehicle's heating and air conditioning system.