KLEENOIL is the finest oil clean by way of cellulose depth filtration as either onboard by-pass filtration or as an oil cleaning machine to situate permanently to as temporary clean - can achieve cleans down to 3 micron absolute (1 micron relative) and remove water all in the same application. On rigs we compliment the depth filtration with magnetic filtration to not only act as a visual prefilter but also remove ferrous and ferric material down to sub micron levels.
Cellulose depth filtration is one of the finest levels of oil filtration possible using dense material and a slow flow to Achieve ultimate performance.
This is one of the most effective, affordable techniques in maintaining clean oil.