Replacement channel balance

With this combination of attachments, you could have either a S380 or S385 channel balance. You 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 to weigh your sash if there is no stamp number on the back of your balance to choose the correct spring strength option for your balance. You'll also need to measure the length of the metal channel. 

Thank you and let us know if you have any other questions or concerns.

Comparison of the S378, S380 and S385 balance shoes.