Genuine OEM Audi A/C Refrigerant Hose, part number 4F0260701M. This hose is a critical component of the air conditioning system, responsible for transporting refrigerant between major system assemblies. It is engineered to withstand high pressure and temperature fluctuations within the climate control circuit. Genuine OEM hoses ensure correct routing geometry and superior resistance to refrigerant permeation, preventing leaks and maintaining system efficiency over time.