This is the legendary Rooster Apparatus by Dave Goldstein, widely considered the smoothest draw possible in a bong. Here we have the 12 inch version. A fritt disc is used multiple times to filter the pull, and this actually ‘scrubs’ it in an amazing way. Everything about the rig is unique, including the massive 24mm custom joints to mount the flower bowl: the female 24mm joint, the male 24mm joint. The fritted disc pre-cooler is to keep ash or plant matter out of the main fritt disc and make the rig easy to maintain and use. The fritted pre-filter is easy to pull and clean. The highest function possible in glass from Dave Goldstein.