(6) GEA 030-00097A-000 Oil 6.0 Filter Cartridge. The Oil Filter Cartridges elements are used to remove contaminants from oil in a compressor system. This Filter element can be used for filtering hydraulic fluid, diesel, machining fluids, lubricating oil, coolants, gasoline, process fluids, turbine and compressor lube oils, synthetic lubricants, any many more chemicals.