Re: KM Diffuser
The heba diffuser's instructions claim that their diffuser can fit over mostly any hookah. Including the ones with a ball or hexagon nut at the end. It says that in order to slip it on, you need to run it through hot water and then strech it out over it. I haven't personally tried this, but that's what the instructions that came with it claim. I wrote a review on the heba diffuser since I've been using it for the past few weeks. I think you should read it before considering a purchase...