... bezel, 3.0-10bar,1/4NPT etc. Oil filled pressure gauge with front flange ,YN63ZQ BRIEF INTRODUCTION ... Oill filled pressure gauge is filled with damping liquid good performance ... APPLICATIONS Process industry, Chemical/petro-chemical, Power stations, etc. DESCRIPTION 1).Nominal Size : 1.5"(40mm) , ... 4", 3/8",1/2", PT,BSP,NPT etc. 15).Fill: Glycerine(standard) Silicone(optional) ...