Spring balance window channel-2740 BS1

Question

I'm need of replacing the spring balances but would like to know about the bottom being different from the illustrations that you have.

Are the bottoms interchangeable? I'm asking cause I've got what looks like a 15-002 or 15-003 bottom yet the 15-005 appears to be a better choice to avoid the brace from swinging back and forth due to the extra flaps/wings on the 15-005.

The number stamped on the brace is 2740 BS1. Hope someone there will be able to assist, if not, may you direct me as to whom I'd need to turn to, to get these replaced. I thank you for your time.

Attached are the photos of the ends of the balance.

Thank you.
Carlos

User submitted photos of a window balance.

Paul · Accepted Answer

Hey, Carlos, thanks for posting. These bottom shoes are not interchangeable. You'll have to match your dimensions to what we show on our site to determine what you have.

Now, because your top attachment is winged and your bottom isn't, your balance will have to be custom made. That combination does not match any of our standard Series. I also do not recommend changing your shoe from non-winged to winged, as there may be a reason why the original installers chose the balances you have now. It's always better to replace your hardware with what was installed originally.

Before I can start with a custom order form, however, I'll need to determine what your bottom shoe actually is. Just by eyeballing it, I think you either have our 15-001 or 15-002. As you can see, they are 1-1/8" deep and 1" deep, respectively. Which measurement more closely resembles your own shoe?