Bronze Flip Lock Scupper & Drain Plugs for Marine Deck Drainage

Our bronze flip lock scupper and drain plugs are engineered for reliable watertight closing of deck drains, scuppers, and transom drains on boats, yachts, and work vessels. Cast from marine-grade bronze, these plugs resist saltwater corrosion and deliver long-lasting service in demanding marine environments. The innovative flip lock mechanism allows quick opening and closing by hand—no tools required—while keeping a secure seal against water infiltration.

Designed to fit standard NPT drain openings, these plugs are ideal for cockpit drains, self-bailing scuppers, and hull through-hulls. The low-profile head reduces snagging and keeps deck surfaces clear. Available in multiple sizes to suit a range of vessel types, these bronze scupper plugs are a practical replacement or upgrade for existing drain fittings.

Whether you are equipping a new build or replacing worn drain plugs, this marine deck hardware ensures dependable performance and peace of mind during extended voyages.