Kitz SCT TM-0003A Precursor Bottle Assembly Power 200V AC This is a used item. It is also marked, "BIS-F U81F0484A000 316L EP 520139333-02". On the top plate it is stamped, "S18-11-065". We have another very similar unit at the time of this listing that is also marked, "ASM FEMS 1046-253-01", but this one is not marked with that information. One small plastic mounting block/spacer is cracked as can be seen in the last picture. It does not look like it was ever dropped and so it would seem to be that it cracked from vibration or over tightening. We are not able to test this unit. Please check the pictures carefully. WF E1-4 d 80217218