The DONALDSON 12.83" OD flame retardant media type round primary air filter features flame retardant media to enhance safety by lowering fire risk. Its round shape optimizes space usage within the filter housing, effectively reducing contaminants to improve overall engine performance. Constructed with high-quality materials, it ensures the long-lasting integrity of the filter. The seamless filtration experience promotes optimal air quality, contributing to a more efficient engine operation through enhanced contaminant reduction.