Radial Sample Handling Kit for Thermo Scientific iCap Series. (For normal aqueous sample solutions containing relatively low acid contents (except for hydrofluoric acid) or up to 3% m/v dissolved solids. The concentric glass nebulizer is not suitable for solutions containing large particulates due to the risk of blockages. 842312051191 is no longer manufactured as a kit - only sold as individual parts. 842312051791 replaces 842312051191 with new EMT style torch and center tube. **Note - the EMT Torch, holder Assembly, and Center tube are not compatible with older version and vise versa.)