CLARCOR Inc. provides filtration products, filtration systems and services, and consumer and industrial packaging products. The Company's segments include 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, including trucks, agricultural machinery, transit buses, locomotives, and other industrial and specialty applications. The Engine/Mobile Filtration segment's products include first-fit filtration systems and replacement products, such as oil, air, fuel, coolant, transmission and hydraulic filters. The Company's Industrial/Environmental Filtration segment manufactures and sells filtration products used in industrial and commercial processes, and in buildings and infrastructures of various types. The Industrial/Environmental Filtration segment's products include liquid process, natural gas and air filtration products and systems.