Bomar Inspection Hatches provide easy access to below deck areas or creates extra storage space on your boat. Features stainless steel hinge pins, "T" handle for easy operation and non-skid surface. The molded, UV stabilized resin hatches are fully gasketed and stand up in the harshest environment. Stark White. I.D. Opening: 8-1/2" x 11-3/8" Cut Out Size: 10-3/4" x 12-15/16" O.D. Size: 12-1/2" x 15-1/2"