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Boll Filter is a global filter manufacturer and specialist in filtration of liquids and gases. Our application-optimized automatic, duplex and simplex filters are the result of our own research and development and comply with international technical standards. Boll Filter's applications include marine engine, locomotive engine, steel industry, chemical industry, power generation, and water treatment. Mediums handled include lubricating oils, combustibles, chemicals, gas, refrigerants, oils, cleansers, and water.