Balance for Lawson windows

Handy Person from Marco Islsnd, Fl
Jan 11, 2025 10:13 am
Need 2 balances for Lawson window. part number on the balance is 3540 - 36 inches long.
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2 Replies

Lauren from SWISCO
Jan 13, 2025 10:27 am


Hello, thank you for posting,
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 will need a 36" balance with a 3540 stamp option. Please review and let us know if you have any additional questions!

Comparison of the S378, S380 and S385 balance shoes.
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