Pella window Coil Balance

Thanks for writing in. Can you show flip the pivot shoe over and show us a picture of its 'face'? The identity of the pivot shoe determines the identity of the coil springs needed. Many thanks.

Thanks for the reply. This looks like our 15-199 pivot shoe. This pivot shoe is compatible with our Series 160 1/2" wide coil springs, as well as our Series 165 3/8" wide coil springs. Please compare the width of your springs to see which one you need. If you have the Series 160, based on your stamp code on the coil spring in your photos it looks like you might need the S160-9, which supports 9.5 lbs of weight individually. Let us know if you have any questions.