Thanks for taking a look at this. I can tell you that there is a marking on the side at the center of the "T"- the number 2.
Casey from SWISCO responded:
November 18, 2020
Hello,
Unfortunately, we do not carry an exact replacement for your pivot bar but take a look at our 26-310 and 26-402 to see if the dimensions of one of these options could work for you. Thanks for posting!
A home owner from Muncie,IN says:
November 19, 2020
Thank you very much. It is great to get your specialized attention.