H2O 21" Double Ring Recycler BongThe H2O 21 inch Double Ring Recycler Bong is an insanely high performance piece that stands out for its complex filtration and diffusion systems. At the core of this piece is the double ring recycler system, designed to continuously recycle water, ensuring that your hits are smooth, cool, and flavorful. As the smoke passes through the recycler, it gets filtered multiple times, reducing harshness while preserving potency. Complementing the recycler is