ONTISIV Self-Bailing 2-7/8 in. Scupper Valve Kit, Clear – One-Way Automatic Drain Valve for 3/4" to 1-1/2" Openings, Heavy Duty Marine Scupper Replacement with Mounting Hardware

["Efficient Self-Draining: Quickly drains water from self-bailing cockpits. The self-bailing ball opens automatically under water pressure to remove standing water, keeping your deck dry and safe.","Universal Fit: Designed to mount over existing thru-hull fittings with 3/4-inch to 1-1/2-inch openings. Diameter: 2-7/8 inches. Compatible with most boat models including fishing boats, yachts, and other watercraft.","Durable Clear Construction: Made from high-quality, impact-resistant clear material for long-lasting performance. The transparent housing allows you to easily inspect the valve interior and check for debris or wear at a glance.","One-Way Valve Design: Functions as both a drain valve and check valve, allowing water to flow out while preventing backflow. Seals automatically when waves hit or the boat rocks, blocking debris and seawater from entering the hull.","Easy Installation: Designed for quick and straightforward installation. Accepts 6 (six) #8 fasteners. Multiple mounting openings allow for easy retrofitting without the need to fill or re-drill holes."]