8/200mm Inline Fan + Carbon Filter + Controller + Aluminium Ducting Grow Tent

MarsHydro 4 inch Inline Fan and Carbon filter kit

15.3 Inch / 38.9 Cm (2). It is able to move air through long stretches of ducting, grow light reflectors or carbon filters. This Inline Exhaust Duct Blower features power motor and an aerodynamically designed shape.