Need help finding the right one for my windows. 26" long / measurement without the plastic parts and has 2540 on it. 2
1/2 inch wide
Window balance
Home Owner from Salem Oregon
Aug 25, 2025 8:10 pm
5 user uploaded images
2 Replies
Casey from SWISCO
Aug 29, 2025 3:10 pm
Hello,
With this combination of attachments, you could have either the S380-26 or S385-26 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 2540 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.
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