Boat hatch window. 4 in Porthole Window, Anodized Aluminum Boat Window, Marine Porthole Window with 10mm Thick Acrylic Lid, Boat Portlight, Boat Skylights Window for Boat/Yacht/RV, Silver Hatches, plates, doors, and windows to fit any boat or yacht are available. . Amarine Made 21. We have produced over the years many types of bespoke windows, doors and hatches for both sail and power boats. Shop boat hatches and portlights, including covers, screens, replacement lenses, and accessories. Upgrade your boat or RV with our marine accessories! Enhance your boat's style and functionality with Bomar quality hatches, portlights, and windows. Free shipping on eligible orders over $99. Quality ventilation and protection for your boat. Lewmar’s comprehensive range of hatches and portlights offers a solution, whether on a small day boat or superyacht. Control of light and ventilation is key to cabin temperature and to your comfort below deck.