NDS Spee-D 249 Black Channel Drain Offset End Outlet for 3" Drain Pipes & 4" Fittings. The outlet connection point sits lower than the Spee-D Channel Drain End Outlet to accommodate more concrete over the outlet pipe or fitting connection. The Spee-D Channel Drain Offset End Outlet is made of polyvinyl chloride (PVC) treated with UV inhibitors. Spee-D Channels are part of the NDS Profile Channel series, and ideal for capturing light to moderate flows from driveways, concrete & paver patios, pool areas, courtyards, and walkways. Hassle-free limited lifetime warranty guarantees the NDS product is free from defects—or we’ll replace it.