22" Balance height , There is stamp too on it. Pics attached
Stamp says :
10/09 UNIQUE 20-D-40
Need to know what is the part number of this balance
Extended-Travel Channel Balance Quote
Quick Learner
May 28, 2025 9:39 am
5 user uploaded images
2 Replies
Tom from SWISCO
Jun 2, 2025 12:42 pm
Hello! Your balance appears to be an older version of our Series 770. Look this over and see what you think.
I would recommend remeasuring the length of the metal channel, though. Based on your stamp it should be either 20" or 21", not 22". I would also recommend weighing your sash on a scale so that you can pick the appropriate stamp option. Your stamp is a little outdated by modern standards and so our spring calibration may differ.
