Lewmar 60 Hatch Flat Base - Cutout: 502x502x40mm - Fitted to thousands of boats, the Lewmar size 60 hatch offers the ultimate protection. Anodised silver frame • Smoke grey acrylic glass • Outside handles • Friction levers hold the hatch open • Size: L574xW574xH43 • Available in either Flat base or Flange base.