The Cheech Glass 8-inch Purple Bubbler is a compact bubbler in purple glass that comes with a 14mm bowl, so it's ready to go. A bubbler sits between a dry pipe and a full bong: it holds a small amount of water to filter and cool the smoke, giving a smoother hit than a dry pipe while staying easy to handle and store. At 8 inches it's a handy size to keep on you. The 14mm joint is the common size, so spare bowls are simple to find, and it's built in borosilicate glass for regular use. A good pick if you want water filtration in something more portable than a tall bong.