The Puffco Glass attachment is compatible with the Peak and Peak Pro. It is a double walled glass chamber, designed for an added layer of water filtration to enhance the smoothness of your vapor clouds. This chic, minimalist design is hand-blown from borosilicate glass and incorporates a perforated inner dome that acts as a percolator. The attachment snaps in and out of the base with ease, making storage and cleaning a breeze.