Replacement Window Balance Identification

Thanks for your photos. Based on what I see here, you have either our S380-27 or S385-27, 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 note that your stamp reads "26 9." This code is somewhat outdated compared to our products, so you will need to weigh your sash to determine which stamp option is best to use. We have a chart on each balance's store page that tells you how much weight each option supports.

Comparison of the S378, S380 and S385 balance shoes.