Model HP Rev A Pressure Reducing Regulator, PTFE/FKM Gaskets (Opt-45); 3/4" Line Size; Sales Kti B; Carbon Steel Body With Carbon Steel Spring Chamber; S36 Trim: 316 Stainless Steel With PTFE Seat, 302 Stainless Steel Diaphragm; 30-150 PSIG Range Spring; OPT-1+6: Differental Construction With Closing Cap