Have this Master Flow Flat Stack Elbow 90-degree delivered to your job site. Made of zinc-coated galvanized steel. 30-Gauge, galvanized steel construction. Helps create a right angle turn in rectangular stack duct runs. Seal seams with code approved mastic, sealant or duct tape. Install with sheet metal screws (not included). Recommended to insulate ductwork for greater system efficiency. Features a minimum temperature rating of -100°F and a maximum temperature rating of 390°F.

Have this Master Flow Flat Stack Elbow 90-degree delivered to your job site. Made of zinc-coated galvanized steel. 30-Gauge, galvanized steel construction. Helps create a right angle turn in rectangular stack duct runs. Seal seams with code approved mastic, sealant or duct tape. Install with sheet metal screws (not included). Recommended to insulate ductwork for greater system efficiency. Features a minimum temperature rating of -100°F and a maximum temperature rating of 390°F.