Window Balance for my house windows

Hello,

With this combination of attachments, you could have either an S380 or S385 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 a 2740 strength option for your 28" balances and 2440 for the 25" balances. Thank you and let us know if you have any other questions or concerns.

Comparison of the S380 and S385 balance shoes.