Channel balance

A quick learner from Englewood Florida says:
Number stamped on the balance is23 C BSI
The metal length of the rod is 24 inches
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Emily from SWISCO responded:

Hi there!

It appears you have either our S351-24 or S390-24 channel balance depending on the depth of the bottom shoe. Our Series 351 comes attached with a 1" deep shoe and the Series 390 comes attached with a 1-1/8" deep shoe. Measure as shown below to determine the best match. You will also need the 2330 spring strength option based on your 23C stamp.

Comparison of the S351 and S390 balance shoes.
Comparison of the S351 and S390 balance shoes.

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