Reducing Coupling Body Material 304 Stainless Steel Class 3000 Pipe Size 3/8 in x 1/8 In. Connection Type FNPT Max Pressure 2570 psi@100 Degrees F Max Steam Pressure 1965 psi@350 Degrees F Outside Dia 7/8 In. Standards Threads conform to ASME B1.20.1 NPT Materials conform to ASTM A182 Dimension conform to ASME B16.11