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Donaldson serves industrial and diesel engine markets including in-plant air cleaning, compressed air and gas purification, power generation, disk drive filtration, off-road equipment and trucks.
Donaldson takes its products to market in various ways. Below is a list explaining the distribution structure for each of our filtration solutions.

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Aerospace + Defense
Products used on aircraft or military equipment are sold directly to aircraft manufacturers and via authorized distributors and original equipment (OE) dealers for aftermarket replacement filters, mufflers and parts.
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Compressed Air & Gas
Complete line of compressor and compressed air and gas filtration products including: inlet air filters; air/oil separators; lube filters; compressed air coalescing, particulate and vapor filters; compressed air dryers; and condensate management equipment; all sold through authorized distributors and direct to original equipment manufacturers (OEM's).
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Engine + Vehicle
Products used on diesel engines are sold directly to original equipment manufacturers (OEMs), such as engine and vehicle makers, and via authorized distributors and original equipment (OE) dealers for aftermarket replacement filters, mufflers and hard parts.
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Gas Turbine Inlet Air Filters
Gas turbine inlet air filtration systems and replacement filters are designed, manufactured, and sold directly to original equipment manufacturers (OEMs) and end user power plants.
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