Coupling Fitting; Type Reducing; Size A 3 Inch; Size B 2-1/2 Inch; End Connection Female Threaded x Female Threaded; Material Malleable Iron; Material Specification ASTM A197; Finish Black; Pressure Rating 150 PSI; Application Steam, Air, Water, Gas, Oil and Other Fluid; Applicable Standard ANSI B16.3/B1.20.1; Tensile Strength 28.4 Kilogram per Square Millimeter; Elongation 5 Percent