DaVinci Ascent Glass Mouthpiece Set "Top Secret" or propylene glycol

or propylene glycol

Made from heavy duty borosilicate glass

One-hitter Pipe

After this a vacuum oven is used to evaporate away the butane and produce your concentrate

production of concentrates in the UK has always involved using solvents

DaVinci Ascent Glass Mouthpiece Set "Top Secret" or propylene glycolDaVinci Ascent Glass Mouthpiece Set One of the reasons for the amazing flavor in the Davinci Ascent is the all glass air pathway which ensures there is no contamination of the vapor from hot metals or plastics. This full spare mouthpiece and pathway set is great as an emergency set or as an option for when you want to share with friends.