Genuine OEM Audi A/C Refrigerant Hose, part number 8R0816721B. This hose is a vital component of the vehicle's air conditioning system, responsible for safely transporting refrigerant between the compressor and other A/C lines. It is shown as item 10 in the assembly diagram, connecting directly to the A/C compressor. Weighing 0.324 kg, it is constructed from materials designed to withstand high pressures and temperature fluctuations. Using a genuine OEM refrigerant hose ensures precise routing, leak-free connections, and compatibility with the specific refrigerant type, preventing costly system failures.