channel lift identification

A home owner from Apple Valley, CA says:
What size and style should I buy. I will need 10 of these.
The numbers on the channel lift are 26-3. The stamped information is B.S.I. pj. I have included pictures with side and front/back profiles
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Casey from SWISCO responded:

Hello,

With this combination of attachments, you could have either an S380-27 or S385-27 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 2630 spring strength options for your replacement balances.

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.
A home owner from Apple Valley, CA says:
Thank you for your help.
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