Channel balance series: S751
Channel length: 57 3/4
Channel stamp: 26TG
Quantity: 2
Thanks for writing! I am certain that we are able to provide you with the replacement balances you are searching for, however there are some things I'll need to confirm before we can move forward.
To start, based on the length here, it looks like you may have measured the entire length of the window framing that the channel balance rests it. Given that your balance is stamped with a 26TG, the channel balance you need is more than likely 27".
Take a look at the video below for instructions on how to remove the ribbed tilt style balances from the window.
May I also see a photo of the balance attachment once removed?