Count on Donaldson for reliable engine protection with the safety air filter. This filter serves as a fail-safe in the event of primary filter damage or improper installation, providing an extra layer of security. It excels at preventing contaminants from infiltrating the clean side of your air intake system during primary filter maintenance. Engineered to react promptly if any contamination breaches the primary filter, it serves as a crucial alert system, keeping operators informed of potential issues. This Donaldson filter adheres to ISO 5011 standards, ensuring quality and dependability. With a length of 12.24 inches, inside diameter of 0.32 inches, and outside diameter of 3.25 inches, it's designed to meet your engine's needs.