window spline

I'm afraid I'm not familiar with the Sunspace brand. Your next step should be to remove a small and undamaged sample of the original and show us a clear photo of the end profile. Written dimensions would also be appreciated.

The video below will show you exactly what information we need. I can't guarantee that we have a match, but with the requested data I will be in a much better position to make a judgment. 

I'm afraid the original customer never got back to us with photos for better reference. At this stage we still don't know what the spline in question is or whether we sell it. In order to determine that, we will need the photos we requested back in March.