Description: 【Innovative Ball Valve Design】: This Clear Self Bailing Deck Ball Scupper Valve features a spherical valve core design that utilizes internal water pressure to open for drainage and automatically closes under external water pressure, effectively preventing backflow 【Anti Clogging Structure】: Equipped with an anti clogging design, this Boat Self Bailing Ball Scupper Valve prevents debris such as leaves and small fish from entering the valve body, ensuring smooth drainage 【Great Sealing Performance】: Crafted with quality pp materials, this Self Bailing Scupper Valve offers great sealing capabilities, completely blocking any leakage even when closed to keep your cabin dry 【Versatile Compatibility】: Designed to fit existing marine accessories, this Boat Deck Drain Scupper can be easily installed in 1-1/8 inch (approximately 28.6 mm) boat drain pipe openings 【Sturdy Construction】: Made from robust plastic material, the product dimensions are 7.3cmx7.3cmx6.2cm/2.87inchx2.87inchx2.44inch and it comes with 1 Boat Self Bailing Ball Scupper Valve for easy installation and use Specification: Material: PP     Size Chart: 7.3cmx7.3cmx6.2cm/2.87inchx2.87inchx2.44inch Package Includes: 1 Clear Self Bailing Deck Ball Scupper Valve Note: Please allow slightly errors 1-2cm differences due to manual measurement.