The Quaker Plastics QP-988-1 Drain-A-Way System II® PVC Surface Cleanout Plug is a component designed to be used with its compatible drainage system. Made of all-weather, rigid PVC and available in several designer colors, this component allows you to match your landscape needs for color and function. The completed drains are constructed with a concave top for superior drainage and minimal debris collection. minimizing clogging and handling more water volume than comparably sized competitive drains.