Shoes. And balances

Thanks for your inquiry. Please take a look at our 15-046 pivot shoe to see if this would make a good substitute. We'd also like for you to take a look at our S600-21 spiral balance. On your current part there should be a color bearing inside the tube where the spiral comes out. That determines the spring strength. If it doesn't have a color, then you would need to weigh your sash on a scale and correspond it to the sash weight chart on the product page.