I'm in of two 28" balances. Photos are of the original that have no #'s. I had replaced with 2740 years ago and just failed. The 2740 required a lot more effort to pull down so I the springs must've been too strong.
Searching your product line I think I need 28" from your 380 Series, likely the 2730. Would you agree?
Window balance

Quick Learner from Riverside, CA
Aug 31, 2024 7:44 pm
5 user uploaded images
2 Replies

Emily from SWISCO
Sep 4, 2024 3:31 pm


Hello there!
Based on these photos, you could have the S380-28 or the S385-28. The Series 380 has a 1" deep shoe and the Series 385 has a 1-3/32" deep shoe. You'll have to measure as shown below to determine the best match.
We also recommend you weigh the window sash on a scale to determine the proper stamp option. There's a chart under the product description on the S380-28 and S385-28 store pages that you can use as a reference.

Comparison of the S378, S380 and S385 balance shoes.
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