I have five Tunze 6025 nanostreams. The four older ones have a U shaped holder that clips directly to the magnet. The newer one has something that looks like four blue rubber pegs that fix the holder to the magnet. After putting the new Nanostream together, I found that the rubber pegs quickly pull out of the holder. Is it still possible to get the old style holder? I'm surprised that you changed anything. There were definitely some problems with the first generation, but I have had no problems with my older 6025s.