The Genuine Porsche HVAC Heater Hose (part number 99757255500) is a high-quality replacement part for the heating and cooling system in Porsche vehicles. This hose is specifically designed for the Porsche 997 model and is made from durable materials to ensure long-lasting performance. It is responsible for transporting hot coolant from the engine to the heater core, which then circulates warm air into the cabin. This heater hose is an essential component for maintaining a comfortable temperature inside the vehicle and ensuring proper functioning of the heating system. It is an authentic Porsche part and is recommended for use in all Porsche 997 models.