Freeze Pipe Bong DualThe Freeze Pipe Bong Dual combines two of the lowest drag percolation chambers and our largest glycerin coil for the coldest and smoothest experience we offer. The base uses a massive showerhead perc and UFO perc combo for unrivaled diffusion without the heavy drag typically associated with pieces this large. If you want smooth and effortless hits with minimal chest and throat burning, this is the piece for you. The largest Glycerin chamber in our