The cool thing about a percolator bong is that it's just like a regular waterpipe - except that it features an extra chamber within the main chamber - ensuring a smoother, and tastier smoke. Unlike double chamber bongs - the second chamber is actually within the first so it's clean cut with no messy bits sticking out that could be easy to break! Diffusers can also be used with percolator bongs as opposed to open-ended downstems to achieve an even better, more filtrated smoke.