Material Composition: Constructed from aluminium with tempered glass for marine-grade corrosion resistance and structural integrity. Shape and Design: Rectangular hatch porthole configuration matching the ship window form factor and mounting geometry. Application Scope: Designed as a replacement part for marine vessel , hatches, or portholes in seawater environments. Functional Purpose: Restores the ’s light transmission, visibility, and watertight barrier function when installed correctly. Fitting Type: Marine fitting intended for integration into existing shipboard window or hatch openings without modification., Manufacturer: YKsaVDxam