18,8 mm bong adapter
 
Thanks to ActiTube activated charcoal adapter, smoking from your bong will be even more enjoyable. Activated charcoal due to its special surface structure is able to absorb large quantities of pollutants (look for activated charcoal in our offer). The adapter is made of glass and fits on bongs with an 18,8 mm connection.
 
Details:
18,8 mm connector,
length: 8,5 cm,
Made in Germany.