Phoenix Star 13.8 Inches Percolator Bong with Diffuser Flower & Inline Diffused Perc PHX588 is a beautifully designed perc bong sitting approximately 13.8 inches high and feels very solid in the hand. Featuring a diffuser flowers percolator and inline diffused percolator, this glass percolator bong offers super smooth hits and easy to use. The glass perc bong has a 18mm female joint and comes with 18mm glass bong bowl. When you take a hit from this glass bong, the flower perc and inline perc helps to produce lots of bubble, filtering the smoke and cooling it. Thus you can get a smooter, cooler and less irritating hit.