Buy OEM Audi Part # 4E0260749A (3D0260749A, 4E0-260-749-A). Ring. Tube. Line. Hose. Pressure. (Front, Rear, Upper, Lower). AIR CONDITIONER and HEATER. COMPRESSOR and LINES. CONDENSER

11 x 2.5mm. A/C Line O-Ring. A/C Refrigerant Line O-Ring. Auxiliary A/C. Exc.Auxiliary A/C. Exc.Heat Pump. Heat Pump. Part cannot be reused/reinstalled. R1234YF Refrigerant. R134A Refrigerant. Included with: AC Hose, AC Hose Part cannot be reused/reinstalled, AC Hose, from AC Tube to comPressor, AC Line, AC Tube, Center AC Line, Center front AC Line, ComPressor to condenser Hose, Connector Tube, Discharge Hose, Discharge Hose Part cannot be reused/reinstalled, Discharge Line, Front AC Line, Front Pressure Hose, Front Pressure Hose Part cannot be reused/reinstalled, Liquid Line, Lower Hose & Tube, Pressure Hose, Pressure Line, Rear AC Tube, Rear Discharge Line, Rear pipe assembly, Refridgerant Hose Part cannot be reused/reinstalled, Refrigerant Hose Part cannot be reused/reinstalled, Suction Hose, Suction Line, Tube, Upper Hose, Upper Hose & Tube, Valve AC Line Part cannot be reused/reinstalled,.

A/C Refrigerant Line O-RingA/C Line O-Ring