MODEL "DA4" SALES A KIT FOR PRODUCT CODE:D49-AMT7-Q1X52776D; PRESSURE LOADED REDUCING VALVE (SERIES IV)-PLPRV BODY SIZE 2",STANDARD DIAPHRAGM CONSTRUCTION; CF3M BODY,316L SST LOADING CHAMBER; M TRIM: MONEL TRIM WITH POLYALL SEAT,17-7PH SST DIAPHRAGM,; FLUOROSILICONE(FK) STATIC SEALS,TFE U-CUP W/SST ENERGIZER DYNAMIC SEAL; NPT FEMALE SCREWED END CONNECTIONS; PER CASHCO DRAWING NUMBER 52776 - INTERNAL SENSING,LOWER RETURN SPRING; STD FLOW DIRECTION; OPT-56 SPECIAL CLEANING PER CASHCO S-1542 FOR INERT GAS SERVICE