ACO Hexdrain/Raindrain Outlet End Cap is compatible with ACO Hexdrain, Raindrain and Hexdrain drainage channels to form a complete working drainage system for domestic paving and patios. Made from Vienite®, a lightweight yet high strength recycled polymer, the ACO Hexdrain/Raindrain Outlet End Cap plays an essential part in the removal of surface water from areas around a residential property.