Pipe Application Air Natural Gas Non-Potable Water Oil Steam Fitting Compatibility Schedule 80 Inside Diameter 3 53/64 in Manufacture Location Globally Sourced Material Steel Material Grade Grade B Metal Pipe Construction Seamless Nominal Pipe Size 4 in Outside Diameter 4 1/2 in Overall Length 18 in Schedule Schedule 80 Side A Connection Type Threaded Side A Gender Male Side A Thread Type NPT Side B Connection Type Threaded Side B Gender Male Side B Thread Type NPT