Ladder perc consists of a sequence of stacked chambers separated by additional wide restriction discs. The water is drawn from the lowest chamber with smoke and each chamber prevents excess water from going higher and causing a tremendous amount of bubbles. In turn, it helps to cool the smoke for a smooth vaping experience.
The ladder perc was produced by the senior designer Micah Evans. Today, it is one of the most effective glass percs available in the market, as it is simple, small in size, and can integrate into most pipe formats.