balance for windo
Hey there! Thank you for reaching out to us. Since this is a Simonton window, I recommend the 15-259 pivot shoe. This is designed to be used with the Series 159 coil springs and you'll need the 26-083 as well. The video below will detail the entire process.
I'm afraid the model number of your window doesn't tell us what weight you would need. If you can weigh the window sash and tell us the precise weight, I can calculate the proper spring weights.
Given the sash weight, I would recommend using the S159-5 Coil Balance. This can hold 5.5lbs but the window will still open and close just fine.
Yes, I do understand that the coil assembly is fairly different than your existing hardware; however, your exact pivot shoe is no longer made, unfortunately.
In the video included above, we detail exactly how to make this conversion; other customers have confirmed with us that this has worked as a suitable replacement.
You'll need to be sure to purchase all of the recommended hardware to complete this repair. Again, they are the 15-259 shoe, 26-083 pivot bar, and the S159-5 coil balance spring. You'll also need to purchase the 15-255 Coil Single Support.
Please feel free to reach out with any other questions!