Cot PEHD Rainplus 75/45° Cot PEHD Rainplus 75/45° is a type of plastic pipe commonly used in domestic, industrial, and agricultural construction. It is made from high-density polyethylene (HDPE) and is designed to resist corrosion and cracking. This type of pipe is rated for pressures up to 200 psi, and is suitable for both outdoor and indoor applications. It is lightweight, durable, and cost-effective, making it a popular choice for many construction projects.