Model 1000HP-1+6 Diff Press Reg,Sgl Diaph,Graphite/Nbr Gaskets; 1-1/2" Size,Gaseous Jet; Sales Kit A; Wcc Body,Wcb Spring Chamber With Closing Cap; S2 Trim: Metal Seat,316SST Cylinder,416SST Plug,302SST Diaphragm; Opt-30: 300 Lb Raised Face Flanges; 30-75 PSId Range Spring; Per SPQ 54141 With Kalrez O-rings and Flexicarb NBR Gaskets;