The Gebo deck hatches are made of seawater resistant anodized aluminium. By default, the deck hatches are made of 10-15 mm thick acrylic and have smoothly finished edges. For a smoother profile, the frame on standard hatches has been extended to fit flush against the base mounting. The base mounting screws are covered by the frame for a smoother appearance and extra safety. Deep grooves in the lower frame provide a 100% watertight assembly. The mosquito screen is available as an option. You can contact us for more information.