1.2.5"(63mm), liquid filled manometer 2.S.S case,Brass connection,S.S ... -10bar,1/4NPT etc. 4.Glycerine filled 63mm(2.5") liquid filled manometerin back connection YN63ZC BRIEF INTRODUCTION Oill filled pressure ... gauge is filled with damping liquid good performance of shock proof.This sort of maters is ...