Sheet Metal Duct Boot; Type Cold Air, X-Break; Size A 19-3/4 Inch x 22-3/4 Inch; Size B 22-3/4 Inch x 14 Inch; Depth 25-3/4 Inch; Material Thickness 26 Gauge; Material ASTM A653 CSB Hot Dip Galvanized Steel; Inclusions/Features Pittsburg Lock Assembly; Excludes Filter Rack