Advanced Drainage Systems Heavy Duty HDPE Single Wall PipeThe Single Wall corrugated HDPE pipe is ideal for drainage projects where flexibility, light weight and low cost are important. Our customers find that this corrugated pipe is an economical, easytoinstall solution whether the project is agricultural, retail or highway related. Applications include downspouts run off, foundation and window well drains, and roadway culverts. Features and Benefits Available in a variety of lengths and diameters to