Preemo- Showerhead To Swiss Perc Beaker Bong - 18"The Preemo 18 inch Showerhead to Swiss Perc Beaker Bong is a dual percolator glass bong that offers the absolute best smoke filtration possible This 18 inch perc beaker combines the power of dual percolation with a showerhead perc and a Swiss perc, creating a double whammy of filtration and diffusion. Starting with the showerhead percolator, this piece ensures full filtration as the smoke is pulled through its many slits, diffusing it evenly. Each hit