Cot PEHD Rainplus 110/45° Cot PEHD Rainplus 110/45° is a flexible corrugated plastic pipe manufactured using high-density polyethylene (HDPE). It is designed to be used in drainage applications and is commonly used in agricultural, industrial, and commercial settings. The pipe is available in a variety of sizes and lengths to accommodate different applications. It is lightweight, strong, and resistant to corrosion and other chemical agents for a long service life. The pipe can be easily cut to size, and it can be connected to other pieces with couplers and fittings.