All fittings are UL listed and FM approved for fire suppression|Manufactured using the latest technologies for material consistency and dimensional tolerances|Classified as a Class 150 malleable iron fitting, (rated at 150 psi) they are test pressure rated by UL and factory Mutual at 300 and 500 psi, configuration-specific

ANSI/ASME B16.15/B1.20.1|ASTM B584|ISO Certified|NSF/ANSI 372|U.S. Federal Public Law 111-380