WIKA 52851566 ALL WELDED SYSTEM - 2XX.34 ASSE,B;ED TP 990.34 NOMINAL SIZE : 4.5" MEASURING SYSTEM: STAINLESS STEEL CASE FILLING: WITHOUT CASE FILLING FLUID: PREPARED FOR FILLING UNIT OF OUTER SCALE: PSI/INHG MEASURING RANGE: GAUGE PRESSURE RANGE SCALE RANGE: 0/200 PSI WINDOW: ACRYLIC (PMMA) RESTRICTOR: STAINLESS STEEL, D 0.6 CONNECTOR LOCATION: LOWER MOUNT ASSEMBLY: DIRECT ASSEMBLY (UP TO 300F) THREADED CONNECTION: 1/2" NPT MALE316L UPPER HOUSING, 316L LOWER HOUSING, 316L DIAPHRAGM, SYSTEM FILL FLUID: KN 68 SILICONE OIL (DC 200-10 cSt)