Thanks to those that gave me some good leads. The original seals are
solid. But they are also 22 years old. Guess they did their job. The
square replacements I am finding are hollow and just don't get a good
seal. they are about 3/8. Chuck


"dbraun" wrote in message alkaboutboats.com...
Downwind Marine (downwindmarine.com (619) 224-2733) in San Diego has this
material. If your ports use the stuff that I am familiar with, the seals
are hollow... almost like tubing. As such, O-ring material probably will
not work. If your material is solid, then you can buy material that is
used to make custom o-rings by the foot from Mcmaster-Carr (mcmaster.com
catalog page: 3234) It is called o-ring cord stock.

Hope this helps

David Braun
S/V Nausicaa