Boll Filter Corporation is the U.S. subsidiary of the renowned German Manufacturing firm of Boll & Kirch Filterbau GmbH. For 75 years BOLLFILTERS have been dominant throughout the major industrial centers around the world. Our company manufactures a number of types and application specific manual, automatic self-cleaning and membrane 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.