DONALDSON COMPANY's new filter cart includes two in-series pressure filters that remove course/fine particulate matter. A water absorbing element may be installed to further remove particulate matter and water and the 1HP motor, coupled with a 10 gpm pump, provides efficient fluid transfer and filtration. Fluids can be transferred from a storage container to a machine's reservoir. The cart can be used as the sole filtration system, or as a supplemental one.