Corrugated HDPE is manufactured from High Density Polyethylene (HDPE) and it is intended for innerduct applications. It's ideal for pulls under 1000ft. and is designed to reduce surface contact when pulling cable. And because this product is lightweight and offers maximum flexibility, installation in small or restricted locations is made easier. HDPE corrugated duct is available in sizes 1'' through 2'' and is offered in a variety of colors. Custom options are also available to satisfy the requirements of most installations.