ACDelco Professional, premium aftermarket Defroster/Air Intake Hoses are for defrosters, air ducts, air intakes, under-hood applications, and other low pressure, low suction applications. They are also approved for Marine applications. ACDelco Professional Defroster/Air Intake Hoses are temperature rated from -40 degrees Fahrenheit to 200 degrees Fahrenheit (-40 degrees Celsius to 93 degrees Celsius). These premium aftermarket replacement defroster/air intake hoses are manufactured to meet your expectations for fit, form, and function.