Quote Originally Posted by ghettoBlunt
umm...are you sure thats not an ice catcher...so you can have your hit go through ice cubes, thats what we do with my friends bong (looks kinda like that one)
An icecatcher is usually just a few ridges at the bottom of the shaft so you can put ice cubes in the pipe/shaft thing and then the smoke, after being filtered through water, also is cooled by going through the ice stack. Mine's too small to fit ice cubes. The ashcatcher is just like a bubbler, like he said. Serves as some more water filtration and to, well, catch the ashes.