ANVIL® Union, Series: 2126 Series, Union Fitting, 1-1/4 in Connection Size 1, Socket Weld Connection Type 1, 1-1/4 in Connection Size 2, Socket Weld Connection Type 2, Socket Weld|Socket Weld Connection Type, Steel, Forged Steel Material Construction, SCH 160 Schedule, 3.36 in Hex, Pressure Class: 3000 lb, Dimension Standards: ASME B16.11, 1.675 x 1.695 in ID x 2.16 in OD x 2.80 in L, Additional Information: ASTM A105, ASTM A182, ASTM A350 Material Standard, Domestic