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• Fan/Filter/Duct Size: 4 Inch
• Airflow: 205CFM
• Noise: 26.8dB-A
• Controller Type: Digital Thermostat Controller

Featuring a 4 inch inline duct fan rated for 205CFM and a carbon filter with Virgin Australian activated charcoal, controlled by a digital touch-screen thermostat controller, the Mars Hydro 4'' inline duct fan and charcoal filter combo ventilation system provides you with everything you need to manage the temperature, the air circulation and the odors in your grow space.