Milgard Window Balancer replacement

Hello,

With this combination of attachments, you could have either an S380-33 or S385-33 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 3250 spring strength options for your replacement balances. 

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

Comparison of the S380 and S385 balance shoes.

Both of these balances come with the 19-005 top attachment, which you can see featured on both product pages. The only difference is the depth of the bottom attachment shown in the diagram in my previous message.