Hydra SM External Fan is an optional accessory to your Hydra SM Electronic Cigar Humidifier. The Hydra SM has a port to add an additional fan. If you already have the Hydra SM Fan Kit, the splitter can accommodate up to three additional fans.
Hydra SM Electronic Cigar Humidifier (cigaraccessories.com)
Hydra SM External Fan Features:
- Hydra SM External Fan (1)