block and tackle channel balancer for aluminum frame windows

Handy Person from Mountain View CA
Aug 25, 2021 4:08 pm
as above
1 user uploaded image
2 Replies

Tom from SWISCO
Aug 31, 2021 1:59 pm


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.