Rectangular Galvanized Ductwork

18 Gauge Galvanized Return Plenum

22 Gauge Galvanized O.G. Offset

rectangular ductwork
22 Gauge Galvanized Rectangular Fittings with 1" Liner. Galvanized Definition - Continuous hot dip process bonds zinc coating to steel. Forms and bends without flaking. A versatile, low cost, corrosion resistant steel. G90 and G60 coatings available per ASTM A525.