Part 2740 HF, B.S.I.
1/2" Channel width
Balance
Home Owner from California
Sep 27, 2025 9:00 pm
2 Replies
Bob from SWISCO
Sep 28, 2025 10:38 pm
Thanks for posting. I am confident we can help, but that stamp is not an identifier--it just tells us the strength of the balance. Can you show us photos of the attachments on both ends of the balance, preferably with the balance removed from the window? We'll do our best to narrow this down from there.
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