AC Infinity - Dust Silencers

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Ac Infinity, Inline Duct Fan Silencer 4 inch 6 inch 8 inch A duct muffler designed for use with inline fans in grow tents, bathroom fans and other HVAC applications. Features dual aluminium 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 Show more