NOVA Bubbler Attachment | Stainless Steel - V2Transform Cipher's NOVA V2 electronic smoking pipe into a virtual water pipe with the cooling percolation power of a stainless steel bubbler attachment! Made of durable borosilicate glass, the bubbler attachment adds water filtration and percolation for a natural cooling effect, in addition to trapping harmful combustion byproducts. This expertly designed glass attachment also provides a fun visual experience as smoke is pulled into the bubbler.