Casey from SWISCO responded:
April 15, 2024
Hello, With this combination of attachments, you could have either the 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'll also need 2740 spring strength options for your 28" replacement balances and 2140 options for the 22" balances. Thank you and let us know if you have any other questions or concerns. Comparison of the S380 and S385 balance shoes.
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