The KUHN 20390590 is a genuine OEM outer air filter designed for KUHN FC series agricultural machinery. This essential component provides superior filtration, protecting the engine from harmful airborne contaminants and maintaining optimal performance and longevity. With an outer diameter of 150 mm, an inner diameter of 100 mm, and a height of 300 mm, this filter is a critical replacement part for routine maintenance of compatible KUHN mowers and conditioners.