Window balancer

Question

I was unable to add a picture of the channel markings.
I think they are 29 9 P) BSI

The length 1s 30".

Thank you for your help.

Tom · Accepted Answer

Thanks for your photos. Based on what I see here, you have either our S380-30 or S385-30, depending on the depth of the bottom shoe. That's the only difference between them. I recommend measuring your shoe and referring to our dimensions to confirm the best match.

I also recommend that you weigh your sash on a scale to determine the correct stamp option. The one you have now, 29 9, is a little out dated, but one of ours should still work depending on sash weight.

Comparison of the S378, S380 and S385 balance shoes.