Blue 16.5cm Glass Diffuser Stem 14/19mm
Contrary to conventional down-tubes/diffusers, the opening end of the diffuser’s tube is first sealed and then pierced with small slits. This means better distribution of the smoke as it rises in many small bubbles. The diffuser option is suited to anyone who likes a milder smoke. A general process is explained by the following picture. It fits 19mm waterpipe and 14mm herb holder.