The Vapo-bowl can be attached to all kinds of pipes,acrylic and glass bongs, turning them into effective vaporizers. You can easily change the temperature inside the bowl by adjusting the screen position.
The metal Vapo-bowl has a standard thread, so it can be attached to almost all pipes and acrylic bongs.
The glass Vapo-bowl works the same as the metal one. This glass version fits on almost all glass bongs. Diameter of the glass fitting is 18 mm.
Keep a (butane gas) flame above the entrance of the Vapo-bowl and start inhaling. A stream of very hot air will now flow through the herbs inside the extraction chamber, taking along the vapours that are released. When you remove the flame, the air in the Vapo-bowl will cool down and the vaporization stops.
Herbs inside the Vapo-bowl will be heated but not scorched.