Vibrant Performance reinforced silicone heater hoses are very flexible. Designed to withstand elevated temperatures, these hoses are Nylon-reinforced. Vibrant silicone heater hoses have a temperature range of -65 degrees F to +350 degrees F, making them well-suited for coolant fluid service, and vacuum line service. These gloss black hoses are available in three lengths-22 ft., 5 ft., and 20 ft.--And in several inner diameters to fill your application needs. Plumb your ride with the quality and performance of Vibrant Performance reinforced silicone heater hoses.