Chanel balancer
Hello,
We'd be happy to help but we would need to see the connecting point between the spring and pulley system of an undamaged balance. This will help us confirm if you'll need stock or custom replacements for your window. Thank you!
Unforutnately, your new photo only shows the pulley. What we need to see is where the spring and pulley connect in the middle of the metal channel.
That's perfect. Based on your photos, you could have either the S380-25 or S385-25 channel balance. You’ll need to measure as shown below. The Series 380 has a 1" bottom attachment, and the Series 385 has a 1-3/32" attachment.
You'll also need 2450 spring strength options for your replacement balances. Thank you and let us know if you have any other questions or concerns.