Add your favorite Dynavap stem to the end of your Crafty or Mighty for ultimate cooling and customizability!  Works with most 8mm diameter stems.  Remove the Crafty/Mighty mouthpiece, insert this and then you have a fitting for any 8mm stem!  Made from food grade 304 stainless steel.  Replacement o-rings here.

Mighty+ unit and revolve stem for demonstration only.  Not included in sale!