Model PGR-1 Pilot Operated Pressure Reducing Gas Regulator; 2" Size; Lcc Steel Body And Cover Dome; Sg Trim: 316l SST Trim, V-Tfe Seat, Nbr Diaphragm;V-Tfe Static Seal, Elg/Tfe U-Cup Dynamic Seal,;SST Pilot Ball, Nbr Diaphragm; 150 Lb Raised Face Flanges; 40 - 100 PSIG Range Spring; External Sensing, Stainless Steel Fittings And Tubing