I got replacement gaskets for all my hatches from Hammerhead Nautical Systems...the owner used to work for A&H....he even sent me a tube a adhesive to install them at no cost.
About | Hammerhead Nautical Systems (hhns.ca) <http://www.hhns.ca/about/> Rob Abbott AZURA C&C 32 - #277 Halifax, N.S.
Custom designed C&C Logoed Cutting Boards are shipping daily. Order yours at: cncphotoalbum.com/cutting_boards