Model 1000HP-1+6 Diff Press Reg,Sgl Diaph,Graphite/Nbr Gaskets; 3/4" Size,Gaseous Jet; Sales Kit B; Wcc Body,Wcb Spring Chamber With Closing Cap; S2 Trim: Metal Seat,316SST Cylinder,416SST Plug,302SST Diaphragm; Opt-32: Schedule 80 Pe Ext Nipples - (Sds Spec Required); 10-40 PSId Range Spring