Model "POSR-2" SALES PILOT KIT FOR PRODUCT CODE: WB1-CS27-13000000A; Pilot Operated Pressure Reducing Regulator,Tfe Gaskets; 1" Size; Main Valve - Wcb Body, SST Cylinder, Ductile Iron Bonnet,;Pilot Valve - Ducitle Iron Body & Wcb Spring Chamber,;Mounting Position "H"; S2 Hard Trim: Main-416SST Seat,17-4ph Plug,Pilot-416SST,302SST;Diaphragm;