The media that we offer in the Replacement for Hydac 0240R020PHC is the most efficient filtration media a hydraulic filter element can offer. glassfiber ability to capture 400 percent more particulate than Cellulose filter elements is why it is the best media choice for your hydraulic filter. The uniform shape and density of the glass fibers is what ensures the hydraulic filter’s 99.9% efficiency. Microglass filter elements are an excellent way to prevent unscheduled downtime and prolong the life of your hydraulic fluid.