18" H2O Cone Diffuser Glass BongIf you're on the hunt for the ultimate diffuser bong, the 18" H2O Cone Diffuser Glass Bong has you covered. Crafted from the best borosilicate glass, this beast stands tall at 19 inches. Great if you want monster hits while being as smooth as possible. The tube is a solid 5 mm thick, giving it that sturdy feel you want in a premium piece. The cone diffuser in this bong is a game changer. It works to break up the smoke, giving you cooler and smoother