Merit Brass m417h-32 Hex Head Plug, 2" NPT Male, MSS SP-114 304 Stainless Steel Cast Pipe Fitting Square head solid plug for closing and terminating the end of a pipe Male National Pipe Taper (NPT) threads for use with female threaded pipes Made of stainless steel 304 for greater strength than 302 grade steel Square head for increased leverage and use with a wrench Meets standards MSS SP-114, ANSI B1.20.1, and ASTM A351 for quality assurance