4' PVC Profile channel drain can be cut to any length and solvent-welded like PVC pipe. Unique patented flying buttress design provides load bearing support from both sides as well as underneath. Special flanges on the bottom of the channel provide an anchoring lip for straight installation and prevents floating. NDS channel system offers choice of bottom, end or side water evacuation. All NDS channel easily connects to sewer and drain pipe and fittings, or SCH 40 pipe and fittings. Ideal for commercial and residential applications from patios to light vehicular traffic areas.