Belvent Manufacturing 110404 Round Rigid Pipe, 4 x 36 in, Aluminum Inner/Galvanized Steel Outer

Item Features

• Easy to assemble and can be combined to obtain the required installation height.
• To calculate installed height, deduct 1.5 in for each joint.
• Double Wall Construction
• Use at Every Ceiling Level where Square Firestop Support is not Used
• Round shape
• 28 Gauge Material