Cot PEHD Rainplus 32/45° Cot PEHD Rainplus 32/45° is a heavy duty polyethylene drainage pipe with a built-in 32° and 45° elbow that helps reduce the number of fittings required in a project. It is designed to provide superior performance in both high and low temperature applications, with an excellent resistance to corrosion, abrasion and chemical attack. This product is certified to meet the requirements of ASTM D2729 and is available in sizes ranging from 4” to 12”.