Golf 1-3/Polo 1 Water flange (double)

The Golf 1–3 / Polo 1 double water flange is a cooling system component that connects the engine block or cylinder head to multiple coolant hoses. It ensures proper coolant circulation between the radiator, heater core, and other cooling passages. The “double” design means it has two hose outlets/inlets, allowing it to serve more than one coolant line simultaneously.