Dixon TR200 Stainless Steel 316 150lbs ASA Forged Pipe and Welding Fitting, Flange, 2" NPT Female Flange for joining two pieces of pipe or connecting valves in a piping system Threaded lap joint with bolt holes to connect to other bolted flanges or flat surfaces Stainless steel 316 for higher strength and greater corrosion resistance than stainless steel 304 Maximum operating pressure of 150 psi American National Standards Institute (ANSI) Class 150 for quality assurance