MODEL PGR-1 PILOT OPERATED PRESSURE REDUCING GAS REGULATOR 1-1/2" SIZE; WCB STEEL BODY AND COVER DOME; SF TRIM: 316L SST TRIM, V-TFE SEAT, NBR DIAPHRAGM V-TFE STATIC SEAL, NBR O-RING DYNAMIC SEAL, SST PILOT BALL, NBR DIAPHRAGM; 300 LB RAISED FACE FLANGES; 40 - 100 PSIG RANGE SPRING; EXTERNAL SENSING, STAINLESS STEEL FITTINGS AND TUBING;