The pivot shoe

Hello!

The information on this sticker doesn't tell us what hardware your window uses, unfortunately. We would need to see an undamaged pivot shoe removed from the window to determine a match. 

Your pivot shoe appears to be a match for our 15-177 which uses the Series 152 coil springs. For new coil covers, see our 15-143 bushing, 15-144 cap, and 15-145 barrel.