Looking for two sash replacements

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Quick Learner from Issaquah, WA

Nov 7, 2025 4:52 pm

The only printing on the existing part is as follows:
22 4 BN CALDWELL
The exact length is 23 inches

4 Replies

Bob from SWISCO

Nov 10, 2025 4:29 pm

Hi there, and thanks for these great photos. I am sure we can help, but can I ask for one further thing? Can you send photos of the 'guts' or underside of the metal channel? Some balances from the west coast have a special design we must account for. Once we determine if that's the case here we can proceed. Thanks!

Quick Learner from Issaquah, WA

Nov 10, 2025 7:06 pm

Hello Bob,
Please see the attached full-length underside photo. Feel free to reach out should you need additional information or photos.
Best regards.

1 user uploaded image

Bob from SWISCO

Nov 13, 2025 3:09 pm

Hello again. This looks like either an S380-23 or S385-23. The difference between these two channel balances is the 'depth' of the bottom nylon shoe. See below. Measure your old balance's shoe depth to see what matches best. For a stamp option choose 2240.

Comparison of the S378, S380 and S385 balance shoes.