High Five™ quartz inserts are produced from high quality lab tested GE214 quartz. The insert features a large 16mm diameter bowl accommodating even the most experienced users.
Quartz features extremely high thermal conductivity and heat retention boasting high flavour preservation. Elevate your Duo experience with the quartz insert with superior flavour preservation & vaporization efficiency.
The quartz insert can be torched clean with a direct flame for easy maintenance.