Duct Fan Silencer 4 - Duct Fan Silencer for 4" Duct Fan ventilation Dilution Solutions Nutrient Delivery System

Dilution Solutions Nutrient Delivery System (NDS) – DAB Starter Kit – 3/4 in (HYKSTART-DAB)

Recommended for larger

(NOTE: Not compatible with MAC systems

Each 340g pouch treats up to 68 plants

Duct Fan Silencer 4 - Duct Fan Silencer for 4" Duct Fan ventilation Dilution Solutions Nutrient Delivery SystemA 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