Contains
virgin charcoal to provide filtration to your indoor growing
ventilation system. Contains aluminum flanges, steel meshing, and
clothed pre-filter.
- Airflow Rating 115-225cu ft/min - 4in x 16in Duct Opening - Fits Hort2O™ 4in Inline Fans
- Airflow Rating 200-400cu ft/min - 6in x 16in Duct Opening - Fits Hort2O™ 6in Inline Fans