STAUFF Offline Filters continuously filter Gearbox or Hydraulic Oil using Radial Micro Filtration. Particles as small as 0.5 micron are removed resulting in less downtime and repairs. An integrated motor/pump unit draws the oil through the filter and pumps clean oil back into the system. Offline Filter Units can continue to work even when the main system is not in use. Offline filters available with one, two or four filter housings and in two different lengths. All filter systems are available with air driven motors. These units are ideal for areas where electric power is unavailable or for hazardous locations.