Boll Filter Corporation is the U.S. subsidiary of the renowned BOLL & KIRCH Filterbau GmbH in Germany, a world market leader in providing liquid and gas filtration equipment since 1950, with subsidiaries and sales/service offices strategically positioned around the globe. Our core product line spans across three generic filter groups - simplex, duplex and automatic self-cleaning, all supported by replacement BOLLFILTER Genuine Parts. Each filter group is comprised of an extensive range of design variations to suite the specific industry and application where it will function. Market diversification has been critical to our success over the years, as BOLLFILTERS are currently operating in almost every major filtration sector around the world. Decades of research and development continues to be driven by the blending of knowledge gained from so many different application environments, providing the impetus to develop some of the most technologically superior products of its kind.