This Pfeiffer Vacuum Oil Mist Filter Eliminator stops oil mist from escaping from the exhaust port, mainly when pumping between atmosphere pressure and 1 mbar (1 mTorr). Oil mist eliminators retain oil mist contained in the exhausted gases with a high level of separation; an internal over pressure valve prevents exceeding the maximum permissible exhaust pressure. Supplied with filter element, one KF25 centering ring, one clamp, and one additional angle port. This OME25S (OME 25 S) Alcatel Adixen Oil Mist Eliminator uses replacement cartridge P102593 located on this website.