BL Triple Chamber Cooler + Diffusor 18,8

As powerful as it is effective: This pre-cooler from Black Leaf offers an extra long cooling path through three consecutive chambers. The 17-slot diffuser in the first chamber does the rest to make the smoke as light and soft as possible.
The pre-cooler fits all 18.8 glass bongs (which should be rather larger and stable to support the weight of the cooler). The diffuser sits on a 29.2 cut, but has 18.8 on the bowl.