Emily from SWISCO responded:
June 15, 2022
Hello! I suspect you may have our 15-087 pivot shoe and 15-086 housing but you'll need to remove your hardware from the window to confirm the dimensions match up. For new coil springs, see the Series 180. You will also need to weigh your sash on a scale and divide the weight by the number of coils on both sides of the window to determine the correct spring strength option. |