CLARCOR Inc. provides filtration products, and filtration systems and services worldwide. The company operates through two segments, Engine/Mobile Filtration and Industrial/Environmental Filtration. The Engine/Mobile Filtration segment manufactures and sells first-fit filtration systems; and replacement products, such as oil, air, fuel, coolant, transmission, and hydraulic filters for on-road and off-road mobile and stationary applications, including trucks, agricultural machinery, construction and mining equipment, power generation, marine, automobiles, transit buses, locomotives, and other industrial and specialty applications. The Industrial/Environmental Filtration segment offers 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; sand control filters for oil and gas drilling; and woven wire and metallic products for filtration of plastics and polymer fibers. It also offers air filters and systems for use in gas turbine power generation systems, heavy industrial manufacturing processes, thermal power plants, commercial buildings, hospitals, general factories, residential buildings, residences, paint spray booths, medical devices and facilities, motor vehicle systems, aircraft cabins, clean rooms, compressors, and compressor stations. The company distributes its products through independent distributors, original equipment manufacturers and dealers, and retail stores, as well as directly to end-use customers, such as truck and equipment fleet users, manufacturing companies, and contractors. CLARCOR Inc. was founded in 1904 and is headquartered in Franklin, Tennessee. As of February 28, 2017, CLARCOR Inc. operates as a subsidiary of Parker-Hannifin Corporation.