We are offering water absorbing hydraulic oil filters / filtration system. Moisture and water absorbing hydraulic oil filter that not only removes particles bugger than 3 microns but also removes moisture from oil, removes sludge and varnish from the oil. The end results is you protect not only your expensive hydraulic pumps servo valve or proportional valves but also extend the life of the oil by almost 3 to 4 times. So instead of repalcing oil after every 2000-3000 hours you can now replace after 6000 to 9000 hrs or more.