Parts required
Hello, thank you for posting,
Your pivot shoe resembles an older version of the 15-180 that is compatible with the Series 190 coil springs. Please review the dimensions below to confirm a good fit. For a new clip and bushing, review the 15-186 and 15-182.
For assistance with choosing the correct weighted coil, please provide the weight of the window sash to move forward. Thank you!
For a 24 pound window, you will need to switch to a double coil support as our single coil weighted options will not support the sash. We suggest using (2) S190-640 coils on each side of the window using the 15-181 double support clip along with the 15-182 balance bushing for each coil. The four coils in the window will add up to 24 pounds of supported weight.
Please review and let me know if you have any additional questions.