KNF NEUBERGER UN840.3FTP LABOPORT VACUUM DIAPHRAGM PUMP ~ TESTED 3 MBAR

Unit was operated in an acidic environment that through contact caused staining to the bottom corner of the case as well as some of coating to the outside of the case (Photograph 2). There is some corrosion to the system screws (Photograph 6) as well and discoloration to the system in general (Photograph 4). There is some damage to the plastic that rests over the power cord (Photograph 12). The piece was thoroughly tested and generated a solid vacuum down to 3 mbar (Photograph 13).