elbow union 1.size:1/8"~1" 2.Standards:NPT,BSP,ISO, ... Steel, Brass, Carbon steel, Also have other elbow, such as union elbow, male elbow, female elbow Parameter: Material:stainless steel 304 ... ,316 Tube O.D:6-32mm or 1/16"-1" inchTechnicsForgedThread StandardNPT ...