Item Description:Material:304/316L Stainless Steel,GlassThread:1/4",3/8",1/2",3/4",1" 1-1/4" 1-1/2" 2" BSPT NPT Female ThreadMax Temperature:100 Degrees CelsiusMax Pressure:1.6Mpa,229 PSIPackage Included:1 PC IndicatorNote:NPT Thread need 2-3 days ready!Item Specification:Connection: FemaleType: Sight GlassHead Code: HexagonTechnics: CastingShape: EqualMaterial: Stainless Steel