26 7 BSI Channel Balance

Home Owner from Monmouth Junction , NJ 08852
Hi Sir
I have the Channel Balance marked "26 7 BSI", not sure what kink of size T-Lock Shoe to match it. Could you help to identify it?
Many Thanks!
Patrick
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2 Replies
Tom
Tom from SWISCO
SWISCO
Expert

Hello, Patrick. I'm not sure what you have, unfortunately. We have dozens of different balances with that stamp. It's not a product code or anything, it just indicates the strength of the spring.

In order to figure out what Series this is, I need you to remove an undamaged version of this balance from the window and show me clear pictures of the top and bottom nylon fittings. I will also need to know the dimensions of these fittings.

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