When you need a replacement weldment and/or shell weldment for your Agilent 5890/6850/6890 GC, we have the parts. However, selecting the correct catalog numbers can be a little confusing for many of us. As a result, I decided to try and simplify the selection process below. I hope you find it helpful.
6850 & 6890 Weldment: If your GC has one of the split vent traps shown below (Restek kit 23031, commonly called large canister filter),
If your 6850 and/or 6890 GC has a split vent trap like shown below (Restek 22820, sometimes called a split vent pencil trap or chemical trap),
.and your 6850 and/or 6890 does not have EPC, then the weldment catalog numbers are 20265 for stainless and 20267 for Siltek-Treated. Please note that these are the same weldments used on the 5890 injection ports.