Parker Stainless Steel 316 Pipe Fitting, 90 Degree Elbow, 3/8" NPT Male X 3/8" NPT Male 90-degree elbow for changing flow direction Male National Pipe Taper (NPT) threads on both ends for connecting two female pipes Made from stainless steel 316 for strength Higher corrosion resistance than stainless steel 304 National Pipe Taper Thread (NPT) for compatibility with a range of threads