It's for a radiance brand window.

The 15-177 Coil Balance Shoe is not an exact match for your coil assembly but I do believe it could work for the repair. To determine if this will be a fit, carefully look over the specifications below.

Alternate image for 15-177

These are compatible with the 1/2" wide Series 152 Coil Balance; attached using the 33-072 screw. You'll need to look for a stamp/marking on the coils to determine the coil weight strength. If yours do not have the stamps/markings, please see the tutorial (tagged below) for instructions on selecting the correct coil weight option.

For the coil support, you'll need the 15-143 Coil Bushing, 15-144 Coil Bushing Cap, and 15-145 Coil Support Barrel. All three snap together to create the support.