5/8" Top Sash Guides

Handy Person from Florida
Jan 13, 2025 12:01 pm
I'm looking to replace the attached 5/8" top sash guides in my windows. I am also replacing the balances with your 377 model. Let me know of any questions and thank you!
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6 Replies

Casey from SWISCO
Jan 14, 2025 3:39 pm


Your assembly looks like a closer match to the S380 or S385 channel balance. You’ll need to measure a balance with an undamaged bottom fitting 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 to locate the stamp code on the metal channel to choose the corresponding 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.

Handy Person from Florida
Jan 14, 2025 5:15 pm
Yes, those are a closer match for my balances. My bottom shoe measures 1-3/32" so I'm going to go with the S385. They are stamped "28 2" and the windows are 14 lbs, so that should be the 2802 option. Thank you for all your help!

Casey from SWISCO
Jan 15, 2025 8:24 am


Great, then you should be good to go with the S385-29 (2820) channel balances as long as your metal channel measures 29" long.

How to measure the length of the Series 385 channel balance.
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