Model 1000LP Rev A Pressure Reducing Regulator, PTFE/Al-Silicate Gaskets; 3/4" Line Size, Gaseous Jet; Sales Kit B; Cast Iron Body With Cast Iron Spring Chamber; B1 Trim: Brass Cylinder, 416 Stainless Steel Plug With Metal Seat, 302 Stainless Steel Diaphragm; NPT End Connections; 4-15 PSIG Range Spring