Pivot Shoe System

Thanks for posting. I can't be entirely sure of your pivot shoe without seeing it removed from the window and knowing it's dimensions; however I believe it might be our 15-199. Take a look, compare with your old shoe, and see if you agree. The 15-199 is compatible with our Series 160 Coil Springs. To know what spring weights you need, look for stamps on the old coils. If there are no stamps, provide us with the weight of the window sash, as well as many coils are on each side of the sash, and we'll work out what you need. Many thanks.