Aqua Lab Technologies replacement downstems fit most standard glass bongs, bubblers and water pipes requiring a 14/18mm fitting. The 14/18mm replacement downstems feature quality boro glass and 6 diffusion slits for added airflow and classic water diffusion. Glass replacement downstems are handblown in California for Aqua Lab from quality, American borosilicate glass.
NOTE: All downstems are measured from the top of the ground joint to the end of the diffusion tip. Please see our diagram in the listing for complete downstem measuring instructions.
Added June 20, 2018