Help Identifying Caldwell balance labeled "27 4 EL"

Quick Learner from Upper Marlboro, MD
Hello, I'm trying to find the replacement part for my current balance that is labeled "27 4 EL Caldwell". The balance actually measures exactly 28 inches in length by about 1 inch width. Any help would be greatly appreciated, thank you
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Emily
Emily from SWISCO
SWISCO
Expert

Hi there!

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'll also need a spring strength option of 2740.

Comparison of the S380 and S385 balance shoes.
Comparison of the S380 and S385 balance shoes.
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