This tall water pipe is a great buy! It has 2 stages of solid filtration. The upside-down barrel chamber is a basic but reliable diffuser. Its simple design distributes generous plums of filtered smoke to the secondary stacked chamber. This is where the real magic happens. The 8 arm tree perc is a classic. It provides an easy flow of air while filtering the smoke for a better smoking experience. The diffusion breaks up the smoke and evenly distributes it throughout the inhaled volume of air. This creates a smoother, more pleasurable inhalation from the water pipe. An ash catcher always makes a great addition to a water pipe this size. It can add even my filtration by acting as a removable auxiliary diffuser chamber.