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• Fan/Duct/Filter Size: 6 Inch
• Airflow: 402CFM
• Noise: 32dBA
• Controller Type: Speed Controller
• Filter: Refillable carbon filter

With a 6'' inline fan rated for 402CFM, 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 6 inch inline duct fan and carbon filter combo provides everything you need to set up the ventilation in a grow tent. A good ventilation setup for grow tents measuring up to 5x5 feet.