This beaker base water pipe from Grav combines two popular scientific glass concepts into one badass bong. The Grav Helix Beaker Bong features a beaker-style base equipped with a showerhead diffuser downstem that filters and moisture-conditions your smoke within the large glass chamber. Each hit is thoroughly diffused before entering the Venturi chamber fixated on top. This unique design utilizes three air intake holes to inject cool air and provide a cooling spin to your smoke. This thick & sturdy glass water pipe from Grav is made on 60mm diameter tubing with 5mm thick walls, and arrives ready to go with a 14mm Grav Helix Taster Bowl Piece. We recommend filling the Grav Helix Beaker Bong with approximately 2” inches of water for optimal filtration and draw-resistance.