14/18mm Replacement Downstems

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.

Downstem Features:

• 14/18mm diffused downstem
• Bong joint fitting: 18mm
• Slide joint fitting: 14mm
• Borosilicate glass
• 6-slit, open-end diffusion tip
• Available in different lengths
• Made in the USA

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