Model 1000HP-1+6 Rev B Pressure Reducing Regulator For Standard Service; Single Diaphragm; Graphite/NBR Gaskets; Includes Closing Cap; 1-1/4" Line Size, Gaseous Jet; Sales Kit A; Ductile Iron Body With Ductile Iron Spring Chamber; B1 Trim: Brass Cylinder, 416 Stainless Steel Plug With Metal Seat, 302 Stainless Steel Diaphragm; NPT End Connections; 10-40 PSID Range Spring