GRAV Helix Bubbler

The GRAV Helix Bubbler filters smoke through water and cools it again in the Helix mouthpiece. Its Venturi chamber has three side air intakes that spin the draw and cool it on the way — visible as a rotating motion inside the glass. The walls are deliberately thick. It is also sold as a multi kit, where a spoon bowl, a hammer bubbler and a concentrate tip all swap onto the same Helix mouthpiece.