Bomar Commercial Grade Aluminum Inspection Hatch Round with Single-Dog Low Profile and White Powder Coated. Hatch is made of Almag-35 Aluminum and has removable lid for easy access. Locks down with a single t-handle. Non-skid surface. Hatch Opening: 5-3/16" (132mm)
Outside Deck Flange: 8-3/8" (213mm)
Cutout: 6-3/8" (162mm)
Extends below deck: 1/2" (13mm)
Weight: 3 pounds