Vinyl window balance

Question

Need a set of window balances and shoes for a vinyl window. The channel balance is 24" in length. Stamped on the channel is 2400 BSI. Is BSI the company of the window manufacturer?

Tom · Accepted Answer

Thanks for your patience during this busy season. Your balance appears to be a match for our S770-24, while your shoe looks like our 15-129. Review these parts and let me know if you had any follow-up questions.

The stamp on the balance is a bit of a red flag. I've never seen that before. I suggest weighing your sash on a scale to verify the proper calibration. We have a weight chart on the S770-24 store page that will tell you exactly what to purchase.