Anvil 2102 Forged Steel Pipe Fitting, Class 2000, 45 Degree Elbow, 1" NPT Female 45-degree elbow for connecting two pipes at an angle Female National Pipe Taper (NPT) threads for connecting to male threaded pipes Forged steel for weldability, rust resistance, and durability Class 2000 fitting for use in moderate-pressure applications Meets specifications ASTM A105 and ASME/ANSI B16.11 for quality assurance