Backflow Preventer Size 1 in Connection FNPT Body Material Lead Free Copper Silicon Alloy Temp Range 33 Degrees to 180 Degrees F Max Temp 180 Degrees F Max Pressure 175 psi Width Not Applicable Length 4 1/2 in Height 1 7/8 in Features 304 (Schedule 40) Stainless Steel Housing an Sleeve Available with Combination of Inlet/Outlet Sizes Types or Thread and End Connection Can be Installed Vertically or Horizontally Standards ANSI/ASSE 1024 CSA Certified B64.6 NSF Certified UPC