VIVOSUN Grow Tent Ventilation System Kit: 4 Inch 203 CFM Inline Fan with Speed Controller, 4 Inch Carbon Filter and 8 Feet Black Ducting with a Pair of Rope Hanger

• Perfect Combination: Three-part system includes every part you need to get set up. It is primarily used in various air circulation and ventilation projects to move and transport air Powerful Inline Fan: Made of galvanized steel, the 4-inch inline fan runs at a speed of 2500 RPM and produces an air flow of 203 CFM, with a noise level of just 49dB the maximum Premium Carbon Filter: Interior and exterior mesh construction provides 53% open area for free air flow. It is filled with 1050+ RC 48 Virgin Australian activated charcoal captures air contaminants effectively Superior Carbon Quality: The carbon filter provides 100% air flow filter ability, such high-quality carbon makes the filter more durable. 4-layer filter system enables cleaner air flow Sturdy Ducting + 2 Stainless Clamps: Strong, flexible steel wire supports heavy duty triple layer duct walls. PET core is sandwiched in layers of fire-retardant aluminum