Galvanized spiral ductwork, ready and reinforced, available in diameters ranging from 4 to 60 inches and in gauges of 26, 24, 22, and 20 inches.
Galvanized spiral ductwork, ready and reinforced, available in diameters ranging from 4 to 60 inches and in gauges of 26, 24, 22, and 20 inches.