1、Suitable Scenes: Tempered glass boat porthole has a rugged construction and stylish look, which has a wide range of applications and is suitable for ships, yachts, etc. 2、Waterproof Sealing Performance: The inner frame of the porthole is equipped with waterproof rubber rings, ensuring complete sealing and waterproof performance. This ensures that your boat's interior environment is not compromised even in harsh weather conditions during sea navigation. 3、Heavy Duty Aluminum Alloy Frame: The overall frame of the porthole is made of marine grade heavy duty aluminum alloy with a smoother white powder coated finish, seamlessly integrating with your boat. It provides a good touch and ensures long lasting oxidation prevention, even in outdoor environments. 4、Double Layer Outward Opening: The porthole window is designed with a double layer outward opening mechanism and comes with 5 304 stainless steel latches for secure fastening. This protects the window's stability while closed and prevents it from being affected by harsh marine conditions. It also includes brackets on the exterior, ensuring stability when the porthole is open. The window can be applied to the hull side panels, superstructures, and deck exterior wall. 5、Robust and Secure Construction: Boat porthole features a marine grade heavy duty aluminum alloy frame and transparent tempered glass, ensuring overall sturdiness and safety. It effectively resists harsh marine environments while blocking sound and heat, providing a comfortable environment.