Seaflo Marine Boat Deck Access Hatch & Lid 17.3" x 12.4", White, 440mm x 315mm Low profile hatch, designed for installation on internal or external flat surface Heavy duty, UV stabilized white ABS construction Reinforced lid with non-skid surface The lid hinges 180 and completely covers the mounting flange, for an attractive flush finish Rubber seal ensures weatherproofing when mounted on vertical surfaces