Enhance the durability and functionality of your boat, yacht, or RV with this Heavy Duty Yacht Porthole, expertly crafted from sturdy aluminum alloy with a polished finish to resist rust and oxidation in harsh marine and outdoor environments. Designed for long-lasting performance, this porthole features a water-resistant rubber sealing ring that ensures complete waterproofing and excellent shock absorption, protecting your vessel from leaks and damage. Key Features: · Heavy Duty Aluminum Alloy Frame: Provides exceptional strength and corrosion resistance, ideal for marine and outdoor use. · Superior Waterproof Sealing: Equipped with a full-ring water-resistant rubber seal to prevent water ingress and enhance shock absorption for reliable protection. · UV Resistant Acrylic Glass: Features 10mm thick smoke gray acrylic glass that filters harmful UV rays while allowing natural light to brighten your cabin. · Inward Opening Design: Opens inward from 0 to 180 degrees with secure double latch locks, offering versatile ventilation and easy access for portholes, sunroofs, storage compartments, or ventilation windows. · Wide Compatibility: Designed to fit installation openings of approximately 303 x 156mm (11.9 x 6.1 inches) and wall thicknesses from 5 to 25mm (0.2 to 1 inch), making it a perfect replacement for leaking, broken, or unsatisfactory windows on boats, yachts, RVs, and other nautical applications. Specifications: · Material: Aluminum Alloy + Nylon + Acrylic + Rubber · Window Size: Approx. 325 x 178mm (12.8 x 7 inches) · Installation Hole Size: Approx. 303 x 156mm (11.9 x 6.1 inches) · Applicable Installation Thickness: 5-25mm (0.2-1 inch) · Opening Angle: 0-180 degrees (Inward Opening) Package Includes: · 1 x Yacht Porthole This Yacht Porthole combines robust construction with functional design to provide a reliable, weather-resistant window solution for marine and recreational vehicles. Its heavy-duty frame, excellent sealing, and UV-resistant glass ensure long-term protection and enhanced cabin brightness, making it an essential upgrade for your vessel or RV.