Engineered with a wide-cut inlet and clog-free technology, it combines the installation ease of 3-inch pipe with the superior flow capacity needed for both high-flow and low-volume applications.
The result?
A smarter, faster solution that’s easier to install than traditional 4-inch systems. FDM’s 3½-inch pipe is purpose-built for strength, efficiency, and versatility—cutting labor by up to 50% and excavation by 30%. It’s the perfect balance of performance and practicality, making it the Pinnacle of Yard Drainage.
Heavy Commercial Solid High Octane® ARMOR 3½ in. Pipe (2 Rolls):
3½” solid pipe for downspouts and discharge lines. FDM’s Heavy Commercial Solid High Octane® Armor Pipe is thicker and stronger than any other drain pipe. Why? Because we love overkill!