Rutgerson Deck Fillers are durable and easy to use: The deck fillers for diesel are injected with red coloured composite to facilitate the distinction from other applications. The design with high grade stainless steel and high tech composite is much more corrosion resistant compared to other solutions on the market such as casted steel. Furthermore, due to the bayonet locking solution it is very quick to open compared to a traditional thread. Just turn it 90 degrees using a winch handle or a key and the lid is open. The link is made of the same material as cable ties, which is extremely strong compared to other composite materials. It is constructed so that it is incredibly easy to replace without any work from the inside, but just from the deck.