Model "HP" Pressure Reducing Regulator,Graphite/Nbr Gaskets; 1" Size; Wcb Body & Spring Chamber; S40 Trim: 316SST Metal Seat,Neoprene (Bc) Diaphragm; Opt-32: Schedule 160 Pe Ext Nipples - (Sds Spec Required); 120-225 PSIG Range Spring; Mag Particle Testing and Radiography To Be Done On The Body And Spring Chamber