Backflow Preventer Size 1 1/2 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 16 3/8 in Height 5 1/2 in Features Lead Free Construction Lead Free Double Check Valve Assemblies Shall Comply with State Codes and Standards Where Applicable Requiring Reduced Lead Content Lead Free Installation Requirements