Hello, I'm looking to replace the channel balances in a Viking window I have. Looks like the part number is 2040 FD. It looks like the metal part is 21" long. If you measure the whole piece, including the plastic parts on the ends, it is 22-1/16" long.
Let me know if you have the part. I would get two, one for each side of the window.
Thanks,
Devin