Genuine OEM Volkswagen A/C Refrigerant Line, part number 5QF816721AA. This line is a crucial component of the air conditioning system, responsible for transporting refrigerant between various A/C components such as the compressor and condenser. It ensures the efficient circulation of refrigerant for effective cabin cooling. Weighs 0.181 kg and measures 0.555m in length. Using a genuine OEM line guarantees correct routing geometry, pressure resistance, and material compatibility, preventing leaks and ensuring optimal A/C system performance.