Pivot lock shoe for window

We believe you have a similar style pivot shoe to our 15-191, which usually works with the Series 160 coil spring. Your spring looks different, though. Instead of installing in the shoe with tabs, it hooks in that little prong there. I think you could still use our 15-191 and Series 160 though, you would just have to replace both. You will also need the number printed on the old spring to determine the best Series 160 option.