This product is a genuine Porsche A/C refrigerant hose designed for use in the front of 911 and Boxster models. The part number is 99657310404. It is a high-quality hose that is specifically designed for use in Porsche vehicles and is made with durable materials to ensure long-lasting performance. This hose is an essential component of the A/C system, responsible for carrying refrigerant to and from the compressor. It is a direct replacement for the original part and is compatible with 911 and Boxster models.