Window balance

Question

I have 19 year old Milgard windows. The balances are quite worn and are no longer working correctly or staying properly attached to the window.

Number on the balance is 26 4 EW CMC 11.

I believe the 27" Series 385 Channel Balance
S385-27 $9.84
option: 2640
is the correct replacement. Can you verify?

Casey · Accepted Answer

Hello,

With this combination of attachments, you could have either an S380-27 or S385-27 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 2640 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.