Channel balance parts 28-3 stamp

A quick learner from 95842 says:

need 2 window balances with 28-3 stamp

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A quick learner from 95842 says:
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Casey from SWISCO responded:

Hello,

With this combination of attachments, you could have either the S380-29 or S385-29 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 2830 spring strength options for your replacement balances. 

If you need new take-out clips as well, take a look and compare the 16-002 to one of your clips. Thank you and let us know if you have any other questions or concerns.

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

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