window coil spring

Hello, thank you for posting,

Please review the 15-180 pivot shoe that is compatible with the Series 190 coil springs. Compare the dimensions below to confirm a good fit! Also see the 15-186 balance clip and 15-182 balance bushing.

Alternate image for 15-180

Your original spring should have a number stamped into the metal that indicates the weighted option needed to support the window sash. If there are no markings, please provide the weight of the sash to move forward. Let us know what you think and if you have any additional questions!