Anvil 2111 Forged Steel Pipe Fitting, Class 3000, 90 Degree Elbow, 1/2" NPT Female 90-degree elbow for connecting two pipes or fittings at an angle 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