Backflow Preventer Series Wilkins 975XL2 Size 3/8 in Connection FNPT Body Material Bronze Temp Range 33 Degrees to 180 Degrees F Max Temp 180 Degrees F Max Pressure 175 psi Width 4 1/4 in Length 10 3/4 in Height 6 in Features End Connections Threaded Standards ASSE Listed 1013 CSA Certified B64.4 IAPMO Listed Compliance NSF/ANSI 372 by IAPMO R and T NSF Listed- Standard 61 Annex G