Galvanized Iron GI Air Rectangular Single Wall Duct - GI Air Rectangular Double Wall Duct & Accessories

rectangular single wall straight duct & fittings are factory fabricated and supplied with factory applied sealant on longitudinal and transverse joints.

Rectangular ducts can be supplied either fully assembled or in loose as required.

Double-wall rectangular ducts utilize the same outer metal shell and insulation media as our Internally-lined rectangular ducts, but have an additional metal inner shell between the insulation and the airstream. This provides some additional characteristic to the duct, as well as allowing a few more insulation options.