Allen 4" Hatch Cover
Standard Dart 18 hatch cover ,Opening size 99mm,
SS Marine "O" ring gaskets are made from 5mm neoprene giving a good seal for darts .(standard Allen are 4mm)
The small hatch cover used on the Dart 18, handy to have a spare onboard in the halyard bag.
We supply the rim for fixing to the decks seperatly see