Anvil 2118 Forged Steel Pipe Fitting, Class 3000, Reducing Coupling, 1-1/4" NPT Female x 1" NPT Female Reducing coupling for connecting two pipes with different diameters Female National Pipe Taper (NPT) threads for connecting to male threaded pipes Forged steel for weldability, rust resistance, and durability Class 3000 fitting for use in high-pressure applications Meets specifications ASTM A105 and ASME/ANSI B16.11 for quality assurance