Window balance

Hello, thank you for posting,

Your coil balance resembles the 15-180 pivot shoe that is compatible with the Series 190 coil springs. Compare the overall style and dimensions to confirm a good fit! To determine the correct spring weight, review for a number stamp on the original spring. If there are no numbers present, please provide the weight of the sash to move forward. Thank you! 

Alternate image for 15-180