The Febco 825EBV 825Y Quarter Turn Reduced Pressure Zone Assemblyautomatically reduces pressure between check valves to at least 5psi lower than inlet pressure. Offers low head loss for flexibility in installation. Operates under maximum working pressure of 175Psi and temperatures of 32 to 140 degrees F. Meets national plumbing codes and water authority requirements for non-potable service applications. Weighs 13.68 pounds. From the manufacturer: Meets all specifications of AWWA, ASSE, CSA. Available in sizes of 3/4 in. ‐ 2 in.