need help

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! 

Alternate image for 15-180

Match up the numbers stamped on the original springs to confirm the weighted options needed. If there are no markings, please provide the weight of the window sash to move forward. 

Also see the 15-181 double support and 15-182 balance bushing if needed. Let us know if you have any additional questions!