O-Ring for access plate

[JohnB]

All,
I need to find another o-ring for the rectangular splash well access plate
on a 88 23' Sceptre. Any ideas or suggestions?
I am down to about 5 little things
to fix on the 23, but it is an fantastic deep water boat.
Don't mean to brag, but I was out of Sebastian Inlet
last Fri, and the only other boat out there that followed
me in was a very big Contender. We came in thru 4-5
foot seas at 21 mph, and actually was pretty comfortable
and dry.
Thanks in advance.

[TonyS]

JohnB, I could not find the o-ring for the hatch, so I installed bigest round screw in clear access plate I could fit in the middle of the rectangular splash well plate. Then I siliconed the rectangular plate in place. Now I can see into the bilge and can screw out the round place to get to my pumps and valves. To get the rectangular plate up all you need is a screw driver, It brakes free easy. (JUST IN CASE)
My bilge has never been so dry.