I have an 18 inch Illusions Upgrade Series straight tube bong that has a 14mm joint. I just found a showerhead diffuser downstem made in Oregon by a blower for 30 dollars but the joint is 18mm. The thing is the bowl joint in my bong is 14mm but where the downstem goes in is fatter and the downstem does not stick out. It's the kind you need a keck clip for. Does anyone know how fat the joint on my bong might be? It's pretty fat and a 14mm downstem fits in snug.
For ima check that see if anyones got an 18mm around here I just took the joint off a broken 18mm an replaced it with a 14 so I had bot way to tell thanks