This 20 Inch Drop Rear Center Panel and Airline Box Combo is a practical and durable addition to any trailer. Made from smooth aluminum, it is available in polished 304 stainless steel or smooth aluminum. The airline box includes trailer air and 1-7 way hookup, making it easy to connect to most makes and models. Sold individually, this combo is a great investment for those looking for a reliable and functional trailer accessory.