The only markings on the balance are 27C RB BSI. The length of the channel is 27". Each side is 1/2". The spring length from hook to hook is 13". The plastic piece is 1&7/8" x 1&1/4". The roller piece is 1&3/16".
My name is Tom
window channel balance
Home Owner from Statesville NC
Sep 10, 2026 3:53 pm
4 user uploaded images
4 Replies
Jasmine from SWISCO
Sep 15, 2026 1:43 pm
Hi Tom,
Thanks for reaching out! I'm confident we can supply the replacement for this window balance. Although, to determine the correct replacement match, I'll need to know if the balances install at the top of the window using a hook or using a screw.
Please let me know if you have any additional questions in the meantime.
Home Owner from Statesville NC
Sep 15, 2026 2:10 pm
attached by a screw
Jasmine from SWISCO
Sep 15, 2026 3:46 pm
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