The DONALDSON obround cellulose primary air filter offers advanced engine protection with its superior dirt-holding capacity and cellulose media. Specially engineered for high-dust environments, this air filter enhances equipment reliability even under challenging conditions. Its precision-built seal ensures an optimal fit, preventing the entry of unfiltered air. Constructed with high-strength materials, it resists moisture and dust damage, providing an extended lifespan. With multiple layers, it delivers effective filtration by capturing a broad range of particulate sizes.