Window Channel Balance Replacements

Hello,

I can't tell for sure but it looks like both of your balance attachments have wings. If so, you could have either an S380-28 or S385-28 channel balance. The 27 4 stamp on your balance indicates that your metal channel should be 28" long. Double-check to confirm the length, not including the end attachments.

You’ll also 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 2740 spring strength options for your replacement balances.

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

Comparison of the S378, S380 and S385 balance shoes.