This product is a Genuine Porsche A/C Refrigerant Hose designed for the front of the 911 model. The part number is 99657310506. It is used for the air conditioning system and is an essential component for proper functioning of the A/C. This hose is made by Porsche and is of high quality and durability. It is designed specifically for the 911 model and should not be used on other vehicles. This A/C refrigerant hose is an important part of the A/C system and should be replaced if there are any signs of damage or wear.