Reduced Pressure Zone Backflow Preventer Series Wilkins 375XLB Size 1 1/2 in Connection FNPT Body Material Bronze Temp Range 33 Degrees to 180 Degrees F Max Temp 180 Degrees F Max Pressure 175 psi Width 9 in Length 15 1/4 in Height 9 1/2 in Features Black UV Stabilized Fusion Epoxy Coating to Help Deter Theft Standards Annex G Approved By The Foundation for Cross Connection Control and Hydraulic Research At USC ASSE Listed 1013 IAPMO listed NSF Listed Standard 61