• 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: 4 inches | Length: 15 inches | Weight: 2.30 pounds

Model: AC-DSA4