NDS 800 5" x 5.5" x 39-3/8" Light Gray Pro Series Deep Profile Channel Drain is ideal for draining moderate water flows from driveways, concrete & paver patios, courtyards, & walkways. The 5 in. Pro Series Channel Drain features a 4-3/4 in. deep polypropylene (PP) channel with interlocking joints for easy connections—no couplings required. Channels join together for longer runs and can be cut to sections as short as 4 in. using the saw guide. The channel has an integrated bottom outlet that connects to 3 in. & 4 in. sewer and drain fittings, and side knockout outlets that connect to 3 in. sewer and drain pipe. Hassle-free limited lifetime warranty guarantees the NDS product is free from defects—or we’ll replace it.