They provide light, freshness, and ventilation to the different places inside the ship, thus also reducing humidity onboard. Although the portholes and deck hatches will be exclusively for the hull or deck of the boat, thus allowing light and natural ventilation to enter, they can also be closed when bad weather occurs, making the ship watertight.
Portholes are generally round or oval. Portholes and covers are made of stainless steel, brass, aluminum with Plexiglas or acrylic glazing.
At Mercanautic, you can find new, second-hand, and outlet portlights and covers at the best price.
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