Inline Duct Silencer, 6-Inch Commercial Humidifier | Airflow: 402 CFM |

| Airflow: 402 CFM | Noise: 32 dBA | Bearings: Dual Ball

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Inline Duct Silencer, 6-Inch Commercial Humidifier | Airflow: 402 CFM |A duct muffler designed for use with inline fans in grow tents, bathroom fans and other HVAC applications. Features dual aluminum flanges to help absorb sound waves from fan vibrations and airflow. High quality neoprene foam in an egg crate pattern that will reduce fan noise by up to 50%. Galvanized steel body that is corrosion resistant and can withstand extreme temperatures. Duct Opening Diameter: 6 inches Length: 20 inches Weight: 3. 90 pounds A