Reduced Pressure Zone Backflow Preventer, Series Watts 909, Size 1 1/2 in, Connection FNPT, Body Material Bronze, Temp. Range 33 Degrees to 140 Degrees F, Max. Temp. 140 Degrees F, Max. Pressure 175 psi, Width 13 1/2 in, Length 23 1/2 in, Standards ASSE 1013, AWWA C-511-92, CSA B64.4