What Balance Is This?

Question

I have an MI white vinyl double hung window that needs a replacement balance. The number stamped on the metal guide covering the spring is 35C. What is the SWISCO replacement part?

Casey · Accepted Answer

Hello, thank you for writing in! We would be happy to help you identify your window balance. The stamp tells us the necessary spring strength, however we still need to figure out what series you will need. In order to do this we will need to see some pictures of your balance, particularly the plastic attachments at either end. Thanks!