... 2.5"(63mm), bottom oil filled pressure gauge 2.S.S case,Brass connection,S.S bayonet bezel, 3.0 ... -4bar,1/4NPT etc. 63mm(2.5") Oil filled pressure gauge ,bayonet ... DESCRIPTION Nominal Size : 2.5"(63mm),4.0"(100mm),Pressure Range : -1~0bar to 0~400barAccuracy : ±1%, ±1.6%, ±2.5%Working Temperature: - ... Glass Or Plastic Thread: 1/8",1/4", 3/8",1/2", PT,BSP,NPT etc. Fill: Glycerine( ...