Donaldson Co., Inc. is a manufacturer of filtration systems and replacement parts. Its product mix includes air and liquid filtration systems and exhaust and emission control products. The company operates through two segments: Engine Products and Industrial Products. The Engine Products segment consists of air filtration systems, exhaust and emissions systems, liquid filtration systems, and replacement filters. This segment sells its products to original equipment manufacturers in the construction, mining, agriculture, aerospace, defense, and truck markets and to OEM dealer networks, independent distributors, private label accounts, and large equipment fleets. The Industrial Products segment consist of dust, fume, and mist collectors, compressed air purification systems, air filtration systems for gas turbines, PTFE membrane-based products, and specialized air filtration systems for applications including computer hard disk drives and semi-conductor manufacturing. This segment sells t