Pivot Lock Shoes

Hello there. This pivot shoe looks like an older version of our 15-215. Unfortunately we have found the new version is not compatible with the way the older coil springs attach to the shoe. Because of that you are likely better off replacing the entire balance assembly with a new Series 140 system. If you are uncertain what spring weights you need, weigh the window sash(es) that need new parts, give me that exact weight and I can work it out for you.