Beckson "Beckson Marine Drain Port - 4 x 14 x 1-Depth - White/Clear, PO414DWC-10"

"Beckson Marine Drain Port - 4 x 14 x 1-Depth - White/Clear, PO414DWC-10. Rain Drain ports are designed for use where cabin sides are sloped and other ports would collect rain and spray. The molded in Rain Drain channels drain while tipped as much as 40. They resist clogging and are easy to clean.