Genuine OEM Audi HVAC Heater Hose, part number 1K0122157HG. This precisely shaped hose is crucial for circulating coolant to the heating and air conditioning system, enabling effective cabin climate control. It features a durable black rubber construction with an integrated connector for a secure fit. Weighing approximately 0.122 kg and measuring 0.225 m in length, a genuine OEM hose ensures correct routing geometry, resistance to high temperatures and pressures, and compatibility with coolant fluids, preventing leaks and maintaining HVAC system efficiency.