The widely-used new oil passing device has the characteristics of easy installation, quick replacement, good sealing, high pressure resistance, and high filtration accuracy.It is widely used in oil-lubricated screw compressors, piston compressors, generator sets, various domestic and imported heavy-duty vehicles, loaders and engineering machinery and equipment.The spin-on oil filter assembly is equipped with a high-strength aluminum alloy filter head, which is used as a filter device for the lubricating oil circulation system of the oil-lubricated screw compressor and the engineering hydraulic system.It is also equipped with a differential pressure indicator. When the filter needs to be replaced, the differential pressure indicator can send out an indication signal in time.