Mufa PEHD Rainplus 125 PEHD Rainplus 125 is a polyethylene (PE) high-density (HD) rainwater collection system manufactured by Mufa. The product is designed with a unique combination of materials to ensure maximum performance, durability, and safety. It is made from a special blend of PE-HD and other materials that are resistant to corrosion, UV radiation, and extreme temperatures. The PE-HD material is also lightweight, making it easier to transport and install. The product also features a rainwater collection system with a built-in filter that prevents debris from entering the collection tank.