Keep your boat's cockpit dry and secure with this professional-grade self-bailing scupper valve kit. The package includes two complete sets, each featuring a rubber flapper valve, rubber gasket, retainer ring, and mounting screws. These scuppers are versatile, suitable for mounting on the transom above the waterline or as thru-hull cockpit drains. The innovative design includes a rubber baffle that efficiently drains water when open while preventing backflow when closed. With precise dimensions (2.79-inch outer diameter and 1.84-inch inner diameter for the white ring), installation is straightforward. The kit comes with eight stainless steel mounting screws (0.61 inches) for secure attachment. These scuppers are engineered for durability and reliable performance in marine environments, ensuring your vessel stays dry during operation. Perfect for replacing worn valves or upgrading your boat's drainage system, these flush-mount adapters provide efficient water management for an enhanced boating experience.