Stainless Steel 316 Cast Pipe Fitting, 90 Degree Elbow, Class 150, 1-1/2" NPT Female 90-degree elbow for changing flow direction Female National Pipe Taper (NPT) threads for connecting two pipes Made from stainless steel 316 for strength Higher corrosion resistance than stainless steel 304 Conforms to standards ANSI B1.20.1 and ISO 49 for quality assurance