CLARCOR Inc. is engaged in providing filtration products, filtration systems and services, and consumer and industrial packaging products. The Company's segments are Engine/Mobile Filtration and Industrial/Environmental Filtration. Its Engine/Mobile Filtration segment manufactures and sells filtration products for on-road and off-road mobile and stationary applications. Its Industrial/Environmental Filtration segment manufactures and sells filtration products used in industrial and commercial processes, and in buildings and infrastructures of various types. Its liquid process filtration products include specialty industrial process liquid filters; filters for pharmaceutical processes and beverages; filtration systems, filters and coalescers for the oil and natural gas industry; filtration systems for aircraft refueling, anti-pollution, sewage treatment and water recycling; bilge water separators, and sand control filters for oil and gas drilling.