The Motor City Wash Works Rain Arch is constructed of 3/4" clear PVC with solution feeds on both driver and passenger sides. The Rain Arch includes in-line check valves to eliminate excessive water and chemical usage and (1) in-line strainer to assist in chemical mixing and potential clogging of application holes. Features PVC ball valves on both sides, clear PVC manifold, aluminum framework, and simple nylon straps to mount from the ceiling.