Plug the scupper holes in your Tequila! sit-on-top. The Scupper Plugs prevent water from coming into the cockpit, but also prevents water from flowing out too.
Easy to use, insert and remove. Made for Point65 Tequila!but can fit any scupper hole of the right diameter. Made of soft rubber-like material.
15mm Diamater - 25mm high with small grab handle