TT Weights Moments Turntable "O" Ring

My understanding is that TT WEIGHTS is no longer in business. Can anyone advise me on how to get a silicone "O" ring for the table. I sent an inquiry  to Larry but I have not heard anything as yet.
My ring is good for  now.  Eventually, I would expect that it would dry out(dry rot).
Thanks in advance for any help you can give.