Cot PEHD Rainplus 56/45° Cot PEHD Rainplus 56/45° is a new type of plastic pipe system developed by Rainplus, a leading manufacturer of plastic piping systems in Europe. The pipes are manufactured from PEHD (High Density Polyethylene) and feature an innovative 56/45° angle profile which provides superior structural stability and water tightness. The pipes are ideal for use in sewer and drainage applications, both above and below ground. The pipes are lightweight, flexible, and corrosion resistant, making them a great choice for long-term use. The pipes also have excellent thermal and acoustic insulation properties, which make them ideal for use in high-temperature applications.