The two stacked tree percs make this glass bong super interesting to look at and also helps remove impurities and cool down the smoke as it makes its way through the piece. Dirty bong water can't travel up to the mouthpiece due to the curved neck and dual chamber design. Blown from heat-resistant borosilicate glass, this water bong is clear with a colored neck, base, and details on the percolator that come in either opaque or transparent styles. Choose from white, black, yellow, green, or blue accents to complement your style. Each water pipe includes a basic glass smoking bowl, but you can easily upgrade to any bowl with an 18mm joint. Don't forget to add on a glass bowl starting at just $4.20.