Use the National Diversified Sales Spee-D 247 Gray Channel Drain End Cap to close either end of the Spee-D Channel Drain, and direct water flow of captured water inside the channel. Attaches directly to Spee-D Channel Drain, no coupling needed. The Spee-D Channel Drain End Cap 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 water 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.