Channel Balance for Windows

Hi there!

Thank you for reaching out to us. Our Series 700 looks like a good match for what you have here. However, please note that our balance's metal channel measures in full-inch increments. 

We also recommend weighing your sash on a scale to determine the proper spring strength. There's a chart under the product description on the Series 700 store page that will tell you which option is best based on the weight of the sash.