Product Details: The Donaldson blue primary obround air filter is engineered with a powercore design to provide superior engine protection and performance. Its advanced ultra web media captures contaminants more effectively than traditional cellulose filters. The radial seal ensures a secure, leak resistant fit with increased sealing area and enhanced gasket compression, maintaining reliability under heavy duty conditions. Built for durability, the filter performs consistently in challenging environments, supporting long lasting, efficient air filtration.