Adventures In Glass Blowing

AIGB - Crushed Opal Downstem

Adventures In Glass Blowing's beautiful crushed opal, German diffused downstems are a unique & heady upgrade to your current bongs look and function. This 5" worked downstem fits most standard bongs, bubblers and water pipes requiring a 14/18mm fitting.  These 14/18mm Crushed Opal downstems feature quality glass and several diffusion holes for added airflow and superior water filtration. These heady downstems  are handblown in California by glass artist Dani Storm. 

Downstem Features:

  • 14/18mm diffused downstem
  • Bong joint fitting: 18mm
  • Slide joint fitting: 14mm
  • Crushed Opal glass
  • Multi-hole diffusion perc
  • Opal pattern may vary slightly from photo
  • 5" length
  • Made in USA


All downstems are measured from the top of the ground joint to the end of the diffusion tip. Please see our downstem diagram for complete downstem measuring instructions. 


    Added November 28, 2018