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Sea Bung

Underwater fitting failure is responsible for 50% of moored boat sinkage.

Such a small piece of kit as a seacock or hose can be responsible for huge amount of damage: even if a vessel has only been submerged for a short period of time the cost of repair is usually 40% of the value of the boat.

Using hi-tech materials and revolutionary design, Seabung introduces a quick and simple way to schedule this critical job into your routine safety checks.

Seabung is also an essential emergency device, outperforming the traditional wooden bung in speed, ease of use and permanence of application.

Seabung is proudly designed in Bristol and manufactured in Rutland. Seabung is CE certified.

Seabung has won the prestigious 2014 DAME award for excellence in innovation at the Marine Equipment Trade Show in Amsterdam and a Freeman Pittman 2015 Innovation Award from Sail Magazine in the US.

Video on the right of your screen shows how to change a sea cock with Seabung

More information and a video demonstration can be found at:

Each pack of two Seabungs (supplied in diameters of 60 and 90mm).




Seabung’s unique flexible dome fits easily through a seacock or damaged area before pinging back into shape and stemming the flow of water.


Seabung’s flexible, elastomeric TPU outer with tough ABS plastic core provides ultimate strength and flexibility.



Seabung is supplied in packs of two which fit holes 19–32mm and 25–63mm equipping you to use with a variety of skin fittings.




Seabung’s tough moulded eyelet allows it to be tethered in place in emergency situations, when an immediate repair is not possible.

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