PE4710 pipe from WL Plastics Corp. is corrosion-, surge- and chemical-resistant, and installs easily. It has low resistance to flows, leak-free fusion joints and tolerance for variable operating conditions. It has low installation and maintenance costs, and lengths of pipe are joined using heat fusion on site. The pipe is lightweight, flexible and durable over time. 682/831-2700; www.wlplastics.com.