stainless steel pressure gauge nominal diameter :150,160mm type:stainless steel,antisepsis ambient temperature:according Nati stainless steel pressure gaugeCase material:SUS 304Movement:SUS 316Socket connection:60,63 1/4NPT M141.5 100,150,160 1/2NPT M20×1.5Liquid filling: Glycerine ,silicone. stainless steel pressure gauge