Imperial Galvanized Steel Trunk Duct

Use as main trunk line for distribution of supply and return air to branch lines throughout a forced-air system. Constructed from 30-gauge galvanized steel for durability and rust resistance. 2 "L" sections snap together to form 1 rectangular duct section.

Use drive and "S" cleats to join 2 sections of rectangular duct together. Galvanized steel construction.