Balance replacement

Hello, thank you for posting,

Your pivot assembly resembles the 15-087 that is compatible with the Serie 180 coil springs. It appears that yours is a double spring setup which uses the 15-086 tandem coil housing. Please review and let us know if you have any additional questions.

If you need assistance with choosing the correct weighted coils, please provide the weight of the window sash to move forward. Thank you!

Detail of 15-087