replacement rubber gaskets on '77 Morgan

[Momma Tried]

On my first go round replacing the gaskets they came custom and fit perfectly. Haven't been able to get ones like the originals lately. Ideas?

[Cap Erict3]

Rubber gaskets on what?

[Momma Tried]

They were for Bomar portlights 4 by 14 inch lens hole (they were from Gray Enterprise distributed by Pompinet Yacht Systems. It was a rubber or something of that nature gasket, that kept the window from leaking. I have replaced the gaskets. twice and all porthole windows once. It is time again as the sun here really does a number on gasket material. They do not keep any records past 2 years.

Thank You for your help...