Tonedf

I've been looking around for quite some time now for a replacement tweeter for one of my KSB 3.1 bookshelf speakers with no luck. I did however find a KSB 2.1 replacement tweet that looks like it's the same size I'm just not sure if it was designed to work as it should in a different model. So if any one out here in Klipsch Ville knows any thing about this, and would like to share some insight I would greatly appreciate it.