Mars Hydro - 4 Inch Ventilation Inline Fan Carbon Filter Duct with Speed Controller Exhaust Fan for Grow Tent Kits Hydroponics - Black

Specification Features of 4 Inch Ventilation Inline Fan: CARBON FILTER FAN COMBO – 4-inch inline duct fan with speed controller, 4-inch carbon filter, 25ft length flex ducting, 3 duct clamps. MARS HYDRO's complete ventilation system provides adequate ventilation and prevents odors in your tent or grow room. VARIABLE SPEED CONTROL - The speed controller can vary the fan speed and air intake according to the needs of the growing environment, ensuring optimal growing conditions. POWERFUL INLINE FAN - MARS HYDRO inline duct fan housing is made of durable plastic, and the fan blades have a mixed flow design to provide active air to your growing space, the fan runs at 2800 RPM and provides 205CFM of airflow. FLEX DUCTING AND CLAMPS - Flexible ducting made of high-quality double-layer Aluminum film, prevent the duct from tearing, and prolong the service life. 360-degree arbitrary bending, smooth exhaust, easy to install. Includes 3 duct clamps. SUPERIOR ACTIVATED CARBON - Made of imported