A kind of pipe, usually made of glass, which is inspired by the constructions of the bong. In other words it’s a pipe where the smoke is filtered by water and this happens in different ways depending on which pipe you choose, but a bubbler always have water filtering. Not only is the smoke filtered but it also becomes cooler and is therefore easier and more pleasant to inhale compared to a pipe where no cooling or filtering exists. These pipes exist in many different price levels and variants but they’re all designed to make the smoking more pleasant than with a regular pipe.