Master Flow 14 in. x 8 in. x 4 ft. Half Section Rectangular Duct

Master Flow's sturdy Rectangular Duct is used as the main trunk lines in HVAC supply systems. Two L sections snap together to form the rectangular duct. Sold in "L" sections. Two pieces must be ordered to produce a full section of duct. Drive and "S" Cleats are sold separately. Constructed of 28 Gauge galvanized steel.