These plugs sit snugly in the hull to stop water from leaking back into the drain. They are simple to pop in and pull out when you are cleaning the deck or getting ready to haul the boat out. Because they see a lot of sun and salt, they eventually get brittle and lose their grip. Keeping a spare in your locker prevents a messy day on the water. They fit flush against the edge so you do not trip over them while walking around the cockpit.
Osculati edge water plug
High-performance water plugs from Osculati for marine systems.