Cone Tube Shower to Circ Perc
This is my favorite dab rig, in fact, I havn't used any other rig since I got it. I do believe that it has some of the smoothest hits possible. Contrary to some different reviews, I have found this to be one of the easiest to clean. Salt and alcohol in the top chamber and a little in the bottom chamber, and a little bit of shaking and it's clean. I love this rig and love Science 420.
Piece of glass of very good quality
This hit is enough to knock out any rookie. The double percolator makes the smoke very soft, and the bowl is not very big. The only drawback is the difficulty in cleaning it. However, it is an excellent piece at a very good price.