This transparent and colourful beauty by Grace Glass is unique in both appearance and use. This diffuser bong features a double chamber system with two downpipes. Of these two downpipes, one is removable while the other is built into the bong. The removable down pipe works on an 18.8 mm joint, and the glass bowl which is a brilliant green color has an easy-lift handle which makes it surprisingly easy to empty your residual ash. If you’re looking to make an investment in a sturdy and authentic bong, this champion of a diffuser should be of primary consideration.