Emily from SWISCO responded:
September 9, 2021
Hey there! Thank you so much for your patience during our busy season! Take a look at our 15-180 coil balance shoe, which uses the Series 190 coil spring. Look over our dimensions and compare them to yours to see if this matches what you need. |
Emily from SWISCO responded:
September 10, 2021
If your dimensions match ours, you would need the Series 190 coil balance. To determine the coil weight you need, you would weigh the sash on a scale and then divide that weight by how many springs you have in the window. For example, if you had four springs total (two on each side) and a 12 pound sash, you would want four 3 pound springs. Let me know if this makes sense. If you're still unsure, let me know the exact sash weight and we can work it out from there. |