FLEX-Drain is the easiest, most cost-effective landscaping drainpipe solution available. Its unique design allows it to stretch, bend and perfectly mold itself to the exact specifications you need, which means less cutting, measuring and time spent installing. With a full line of drain pipes and fittings available, FLEX-Drain is perfect for all landscape drainage applications, including retaining walls, curtain drains, downspout drains and French drains. But just what is it that sets FLEX-Drain apart? It’s a combination of the materials used and award-winning, patented design.