I have a Pro Lab Zefon air pump and sampling kit up for sale. The vials and swabs (3 left of each) are expired, but can be used for practice. I still have 9 inner wall attachments left. Also comes with the tripod and Plano case.
I bought used, from a retired inspector a few months ago and I have never used it (I have 2 others). Pump operates as designed. $125 plus shipping (from Charlotte) and its yours!!!