Amerimax Home Products FLEX Drain 4 in. x 50 ft. Black Copolymer Perforated Drain Pipe with Sock

FLEX-Drain helps you get the job done faster and easier, with professional-grade durability and more versatility than traditional corrugated pipes. Flexible and expandable, FLEX-Drain easily bends around any obstacle, holds its shape during installation and with a simple snap, its integrated soil-tight fittings lock securely and stay connected during backfilling. With this product, taping joints becomes unnecessary while the pipes' spaced slits, covered by a removable polyester sock, make the product ideal for french drain in fine soil. The sock allows filtration where there is considerable debris, sand or fine soil making the FLEX-Drain a complete drainage solution system that's widely compatible with virtually all traditional 3 in. x 4 in. corrugated pipe and 4 in. PVC. Technologically superior, it's made with no-break copolymers and exceeds all applicable ASTM crush standards.