Mufa PEHD Rainplus 110 Rainplus PEHD 110 is a lightweight, corrosion-resistant polyethylene (PE) pipe from Mufa. It has a smooth internal bore with a high resistance to abrasion, impact, and chemical attack. The pipe is designed for use in a variety of applications, including drainage, irrigation, potable water systems, and industrial process systems. It is suitable for use in both high- and low-temperature environments and is available in sizes ranging from 110mm to 355mm.