Model PGR-1 Rev A Pilot Operated Pressure Reducing Gas Regulator; 1" Line Size; Stainless Steel Body And Cover Dome; SA Trim: 316L Stainless Steel Trim, Neoprene Seat, Neoprene Diaphragm, PTFE Static Seal, Neoprene O-Ring Dynamic Seal, Neoprene Pilot Ball (For 90-200 PSIG Spring Range 316 Stainless Steel Ball) And Diaphragm; NPT End Connections; 90 - 200 PSIG Range Spring; Brass Fittings, Copper Tubing For External Sensing; OPT-86: System Supply Gauge For Stabilizer Outlet; OPT-56: Cleaned For Non-Oxygen Service Per Cashco Specification S-1542