Imperial Stack Duct, 3-1/4 x 12 x 24 in. is a high-quality galvanized stack duct designed for durability and ease of installation. Made from 30-gauge galvanized steel, this 2-piece snap-lock duct ensures a secure fit and reliable performance. Each piece is priced individually, although two pieces are required to match the stated size dimensions. I for various ventilation and ducting applications, this stack duct combines strength and practicality, making it a dependable choice for your project needs. Model Number: GV0214