View 1 of 3-1/4 in. x 10 in. Galvanized Steel Vertical Elbow Duct Transition

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View 1 of 3-1/4 in. x 10 in. Galvanized Steel Vertical Elbow Duct Transition View 2 of 3-1/4 in. x 10 in. Galvanized Steel Vertical Elbow Duct Transition