Stainless Steel 316 Pipe Fitting, Half Coupling, Class 1000, 1/8" NPT Female X Plain Half coupling for connecting and extending pipes going in the same direction Unthreaded (plain) on one end and female National Pipe Taper (NPT) threads on the other for connecting different types of pipe Made from stainless steel 316 for strength Higher corrosion resistance than stainless steel 304 Conforms to specifications ASTM A182, ASME SA182, and ANSI B16.11 for quality assurance