Boll Filter Corporation, is the U.S. subsidiary of the renowned German Manufacturing firm of Boll & Kirch Filterbau GmbH. For in excess of 70 years BOLLFILTERS have been dominant throughout the major industrial centers around the world. Our company manufactures a number of types and application specific filters for water, lubricating oils, fuels, chemicals, coolant and alkaline cleaning solutions. These filters are now made available in North America directly from the U.S. Corporate Headquarters in Novi, MI.