3B4-5S0K-18BA

Model HP Rev A Pressure Reducing Regulator With Graphite/NBR Gaskets; 1/2" Line Size; Sales Kit B; Carbon Steel Body With Carbon Steel Spring Chamber; S0 Trim: 316 Stainless Steel Metal Seat, PTFE Coated 302 Stainless Steel Diaphragm; 10-40 PSIG Range Spring; OPT-1+6: Differential Construction With Closing Cap