Hello I was looking to purchase a new bong and u saw something called a pre cooler. What is a pre cooler and how does it work. Thanks
It's also known as an ashcatcher. Something you attach to the downstem that allows for a larger chamber and/or more filtration.
a part that goes on your tube to keep it clean heres a vid. [ame=http://www.youtube.com/watch?v=vlFJNg-MDhU]YouTube - zob session[/ame]
I was looking to get this bong, Very Thick Acrylic Bong - English - Grasscity.com , and the pre cooler mentioned on the page