Window won't stay open

Hello! If your window won't stay open, then the culprit is likely the balance system. Based on your photo, you have a specific kind of coil balance system that's housed inside the pivot shoe itself.

Your shoe is a match for our 15-087, but since yours looks to be in good condition you may only need the spring. See our Series 180, which is designed to work with the 15-087. You'll need the stamp off the old spring to confirm the best Series 180 option.

The diagram below may also be helpful in determining how these all go together.

Series 180 coil balance diagram

Hey, Gavin. That still looks like the hardware I suggested. The way the spring attaches to the bracket even matches my diagram. I feel confident those products are a match.