Introducing the Donaldson safety air filter, your engine's reliable backup plan. Engineered to step in when the primary filter falters, it ensures uninterrupted protection. Its robust design prevents contaminants from infiltrating the clean side of the air intake system during primary filter maintenance, safeguarding your engine's performance. Should any contamination slip through, this filter is designed to rapidly plug, acting as an instant alarm for operators. With ISO 5011 standards and approvals, you can trust in its efficiency and quality. The filter measures 17.76 inches in length, with an inside diameter of 6.94 inches and an outside diameter of 9.09 inches.