Grace Glass Pre-Cooler Double Perc 18.8

The GG double perc pre-cooler offers double additional filtering for your valuable, but often somewhat scratchy bong smoke.

In the first step, the smoke is drawn through the showerhead diffuser at the lower end of the chillum and loses a good part of its sharpness here.
Finally, the Discpercolator gives the performance the perfect rounding off and makes the session a much milder experience.