Wiramas oil filter technology offers 4 different sizes of Oil filter units, ranging from the FS-50 to FS-4000, for which applications works for both petrol and diesel based engines, where applications include heavy earth moving equipment and large fishing vessels. The unit size for a particular application is determined by oil sump capacity, or in the case of hydraulic applications, by the hydraulic oil system capacity. For direct hydraulic oil cleaning, we do provide the service of cleaning the contamination and water removal, do read more from our services page.