Double Filteration Bowl 'Cool B' "portable vaporizer" the oil banger lets you

the oil banger lets you enjoy your favorite concentrates and a suitable carb cap can be held over to reduce airflow and generate more smoke

and down right pure

This gradually bakes the active ingredients out of your herb in much the same way a fan oven works

untainted by metal or wood

Double Filteration Bowl 'Cool B' "portable vaporizer" the oil banger lets youBlack Leaf Double Filteration Bowl 'Cool B' The Cool B is the latest innovation to come from our friends at Black Leaf. This bowl offers a new, state of the art double filtration system, which uses two percolators incorporated in the bowl design. The benefit of the double perc is that the smoke is filtered as soon as it leaves the top of the bowl and again once it is in the bowl. This Cool B double perc bowl is a superb filtration system and can even