Combine a medium to large hand pipe with water filtration through an internal down stem and you have a bubbler. A bong is a bong while in contrast, the bubbler comes in a variety of shapes. They do not have the large 2″ tube of a bong, and as a result, they have less air mixed in with the smoke. in contrast, they provide a more concentrated and pure hit even though it won’t be as massive as a bong rip. Bubblers are available in stand up Sherlock, Sidecar, and Hammer.