Duct Carbon Filter, Australian Charcoal, 4-Inch

4” inline filter designed to block odors and chemicals from escaping grow tents and hydroponics rooms.
Features premium-grade Australian charcoal with greater adsorption and longer life rating.
Powder-coated gunmetal finish is constructed for high durability and rust resistance to high-level humidity.
Built with aluminum flanges and a galvanized steel mesh; includes two straps, two rope clips, and two pre-filters.
Duct Opening: 4” | Length: 12″ | Airflow Rating: 210 CFM | Carbon: Australian RC412 at 1200+ IAV | Thickness: 38mm