Bomar Commercial Grade Aluminum Inspection Hatch 10-1/16 inch x 19-1/4 inch Rectangle 2-Dog Low Profile. Hatch is made of Almag-35 Aluminum and has removable lid for easy access. Locks down with two t-handles. Non-skid surface. Hatch Opening: 10-1/16 inches x 19-1/4 inches (256 x 489 millimeters), Outside Deck Flange: 14-7/16 inches x 24-7/16 inches (367 x 621 millimeters), Cutout: 12 inches x 21 inches (304 x 533 millimeters), Extends below deck: 1/2 inch (13 millimeters), Weight: 12 pounds.
BOM-P100-51 IS THE GASKET FOR THIS HATCH (5FT)