Backflow Preventer Size 1 1/4 in Connection NPT Body Material Lead Free Cast Copper Silicon Alloy Temp Range 32 Degrees to 140 Degrees F Max Temp 140 Degrees F Max Pressure 175 psi Width Not Applicable Length 15 7/8 in Height 5 1/2 in Features Lead Free Construction Lead Free Installation Requirements Lead Free Reduced Pressure Zone Assemblies Standards ANSI/AWWA Conformance (C511) ASSE 1013 CSA Certified B64.4 NSF Certified