We are offering glycerin filled pressure gauge. "osmadial sciecon" pressure gauges are ideal where pressure gauges are subjected to severe conditions. The filled liquid protects the internal parts against vibrations and also lubricates and protects from environmental conditions. Case : cast aluminum black ip – 55 weather proof case dial size : 100mm ø,150mm ø and 200mm ø range : 760 mm hg to upto 400 kgcm2 element : ss bourdons tube connection : 38”, ½” bsp npt (m) bottom back connection made from brass or ss rod mounting : direct, surface & panel mounting