Mars Hydro 4" Inline Duct Fan and Carbon Filter Combo w/ Speed Controller

With a 4'' inline fan rated for 205CFM, an activated carbon filter with Australian charcoal, and a knob controller applied to allow easy switching and adjustment of the fan speed, the Mars Hydro 4 inch inline duct fan and carbon filter combo offers you everything you need to set up the ventilation in a grow tent. A good ventilation setup for grow tents measuring up to 3x3 feet. Fan/Filter/Duct Size: 4 Inch Airflow: 205CFM Noise: 28dBA Controller Type: Speed Controller Package Include:  4" inline duct fan with speed controller, 4" carbon filter, 2 Hanging Straps, 33ft length flex ducting, 3 Duct Clamps. Quiet Ventilation Fan For Indoor Grow: The Mars Hydro 4" inline duct fan is rated for 205CFM max, sufficient for grow tents or grow rooms measuring up to 3x3 ft. With a knob fan speed controller, the inline fan speed can be adjusted from the lowest to the highest by a simple turn of the knob. Featuring an EC-powered motor and a mixed-flow design, the Mars Hydro inline fan is quiet enough to run at full power with only 28 dBA of noise. Efficient Carbon Filter For Grow Tents: Designed for efficient air filtration, the inner core of the Mars Hydro carbon filter was made of 1050+ Australian activated charcoal, eliminating undesirable odors, pungent smells, and particulates from indoor grow tents. The double-sided galvanized steel mesh provides 53% of the open area for airflow to pass through, so that the odor absorption and chemicals elimination process can be carried out thoroughly. (The carbon filter was covered by a prefilter cloth; do not remove it when using) Durable Flexible Ducting & Connecting Accessories: This ventilation kit is paired with a 33-ft-long PVC thermoplastic flexible duct tube to direct the air in and out properly, durable and easy to use. With 2 adjustable hanging straps and 3 duct clamps to easily connect the inline fan, carbon filter, and ducting tube, the whole ventilation kit gets all the necessary parts to ventilate and filtrate indoor grow tents and grow rooms. Grow Tent Environment Control: The Mars Hydro 4 inch inline duct fan and carbon filter combo ventilation kit is capable of ventilating and filtrating a 2x2 grow tent, a 2.3x2.3 grow tent, or a 3x3 grow tent, the best partner to control your grow environment with fresh cool air.       Specs Draw power 25W FAN SIZE 4 Inch CARBON FILTER SIZE 9000mm(length)X100mm(diameter) Airflow 205CFM RPM 2600RPM Noise 28dBA Voltage AC 110-240V Fan Controller Speed Controller Dimension 303mm*202mm*190mm