MARS HYDRO 4 INCH INLINE DUCT FAN AND CARBON FILTER COMBO WITH SPEED CONTROLLER

Package Include:  4"inline duct fan with speed controller, 4" carbon filter, 33ft length flex ducting,3 Duct Clamps.

Excellent purification： inner core Made of imported Virgin Australian activated charcoal, delivering 100% filtered airflow, eliminating some of the most undesirable odors, pungent smell, and particulates from indoor grow tent or hydroponics grow room.

Effective & Quiet Ventilation Kit: 4" Inline duct Fan is rated for max 205CFM, excellent odor elimination. With fan speed controller, noise min to 28dB. Filter with built-in Australian virgin charcoal granules which absorb exponentially more contaminants and allergens than traditional carbon.

Perfect Growth Partner: Fast assembly, work as a cost-effective, convenient ventilation combo.