A complete Stainless Steel body with Corrosion-Resistant nebulizer, Tantalum needle, and Kalrez o-rings. It is preferred for all soutions containing hydrofluoric acid or aqua regia. All internal components in contact with solutions are constructed of plastic to resist corrosion from concentrated acids. However, while they are exceptionally inert, they are less resistant to mechanical stress than the Stainless Steel Nebulizer (N3110109) or Platinum Alloy Nebulizer (N3110111). This nebulizer is compatible with the PerkinElmer Models 1100(B)/2100/4100 AA instruments.