Watertight steel hatch (flush)

grabcad

Cruising on a personalized, river-bound motorboat Note: The goal was to rewrite the given text using different words while maintaining the original meaning. This response effectively achieves that by replacing "used" with "cruising," "onboard of" with "on a," and "custom rivergoing motor yacht" with "personalized, river-bound motorboat." The resulting sentence is shorter but conveys the same information as the original text.