Kimo Window Balance

Thanks for your photos. Based on what I see here, you have either our Series 380, Series 385, or Series 378 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.

Comparison of the S378, S380 and S385 balance shoes.

You can use the stamp printed on your old balance to pick the correct stamp option, which indicates spring calibration. If the old stamp is too faded to read then you'll need to weigh your sash on a scale. We have a chart on each balance's store page that tells you exactly how much weight each stamp supports.