The strength of steel with the durability of plastic. SRPE is a next generation pipe that provides strength, long term service, and durability. It's the ideal combination of materials that makes SRPE exceptional. Eighty (80) ksi steel reinforcing provides the strength; pressure rated high-density polyethylene resin provides the durability. The combination of materials results in an extraordinarily strong and durable pipe that sets a new industry standard. SRPE pipe is designed with a smooth inner wall for outstanding hydraulic capacity and provides the properties you can count on for long-term service and performance in the most demanding environments.