Product Information Material: Zinc Plated Steel Male Thread: NPTF Select a Product Part NumberMale Thread SizeWorking Pressure 1251-12H3/4"-142500 PSI 1251-06H3/8"-184000 PSI 1251-02H1/8"-275000 PSI 1251-20H1-1/4"- 11-1/21150 PSI 1251-08H1/2"-143000 PSI 1251-04H1/4"-185000 PSI 1251-16H1"- 11-1/22000 PSI