The metal channel is 30" long. Width is 5/8 " Depth is 5/8 " The number stamped on it is 29 3
The Window was manufactured by PGT Industries, Nokomis, FL
Thanks
Bob
Paul from SWISCO responded:
April 12, 2016
Thanks for contacting us, Bob. Please see our S395-30 channel balance, I think this might be a good match for you.