Trinity's New Style Competition Glass Cap for for the Mutation X V4 / X V4S / REM RDA
features an extra wide bore and dual extra large air hole slots for maximum vapor.
Extra Wide Bore
Dual Extra Large Air Hole Slots for maximum vapor production
Clear Pyrex Glass Cap allows you to see your build in action
Made out of Pyrex glass so you can use your favorite citrus flavored E-Juice without worrying about cracking your tank.