14mm Female to Female Adapter
Sneaky Pete Says:
These adapters will allow you to use two male joints together. The adapters are sturdy and approximately 2.5" tall, and will work with your favourite water piece and vaporizer adapter.
To attach 2 x 14mm male pieces, select the 14mm Female to 14mm Female Adapter.
To attach 1 x 14mm male and 1 x 18mm male pieces, select the 14mm Female to 18mm Female Adapter.