Parker Stainless Steel 316 Pipe Fitting, 90 Degree Street Elbow, 1/4" NPT Male X 1/4" NPT Female 90-degree street elbow for changing flow direction Male National Pipe Taper (NPT) threads on one end and female NPT threads on the other to eliminate the need for an adapter Made from stainless steel 316 for strength Higher corrosion resistance than 304 stainless steel National Pipe Taper (NPT) thread for compatibility with a range of threads