Inline Duct Silencer, 4-Inch Commercial Humidifier Lights that have spectrum control

Lights that have spectrum control or utilize a resistor protocol are not compatible

dolomitic and calcitic limestone (pH adjuster)

and other volatile organic pollutants

CO2 REGULATOR

Inline Duct Silencer, 4-Inch Commercial Humidifier Lights that have spectrum controlA 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: 4 inches Length: 15 inches Weight: 2. 30 pounds A