Double Hung double coil replacement assembly

Thanks for reaching out! Your pivot shoe resembles our 15-180. I am confident this is the replacement needed for your window, but look over the dimensions to confirm.

Alternate image for 15-180

These are compatible with the Series 190 Coil Balance Springs. To confirm which coil spring you need, check for a stamp on the metal coil that will help you select the stamp strength. For example, your coil might be stamped with something like a 7 or 740. This would mean you'd need the S190-740 which can hold 7lbs.

Be sure to check for the stamps on both of your coils. The compatible support clip for these coils is the 15-181. You may also need the 15-182 balance bushing and 33-073 screw.