Lauren from SWISCO responded:
March 1, 2024
Hello, thank you for posting, Please review the style and dimensions of the 15-180 pivot shoe that is compatible with the Series 190 coil springs. Also see the 15-181 double support clip and 15-182 balance bushing if needed. If you need assistance with choosing the correct weighted coil, please provide the weight of the window sash to move forward. Let us know if you have any additional questions! Alternate image for 15-180
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