PVC duct has all kinds of advantageous qualities. For instance, it is lightweight making it easy to ship, handle, and install. It also has a fantastic resistance to corrosion and chemicals. PVC duct comes in sizes ranging from 2" to 60" and has high tensile strength and modulus. Give us a call or submit a quote request online today! Size: 20", Material: PVC, O.D.: 20.000", Wall: .219", Std Length: 10 or 20 ft. Standards: ASTM D1784