The SCM stainless steel oval porthole 355 x 155 mm - OON.F05.AA.M is a robust, weather-resistant porthole that is ideal for both sea and inland vessels. With a size of 355 x 155 mm, this porthole is suitable for various applications such as monitoring the cargo being transported or observing the environment around the vessel. It is made of stainless steel for added durability and reliable performance in extreme temperatures. Additionally, it features waterproof seals and is equipped with a recessed lock for extra security. With a sturdy frame, this porthole offers a modern design that is aesthetically pleasing, even from a distance. In short, the SCM stainless steel oval porthole 355 x 155 mm - OON.F05.AA.M is the perfect choice for enhancing the safety and appearance of your boat.