1.2.5"(63mm), silicone filled pressure gauge 2.S.S case,Brass connection,S. ... .0-10bar,1/4NPT etc. 4.bottom , 63mm(2.5") silicone filled pressure gaugewith back flange ,YN63ZC BRIEF INTRODUCTION Oill filled ... /8",1/2", PT,BSP,NPT etc. Fill: Glycerine(standard) Silicone(optional) Gaskets/Filling cap: Neoprene Or Silica gelOPTION 1. With ...