Reduced Pressure Zone Backflow Preventer Series Wilkins 975XL2 Size 3/4 in Connection FNPT Body Material Bronze Temp Range 33 Degrees to 140 Degrees F Max Temp 140 Degrees F Max Pressure 175 psi Width 5 1/8 in Length 12 in Standards Annex G Approved By The Foundation for Cross Connection Control and Hydraulic Research At The University of Southern California ASSE Listed 1013 CSA Lead Plumbing Law Certified By IAPMO R T NSF-Standard 61 Compliance ASSE 1013 C511