The RadialSeal primary air filter, with a length of 14.65 inches, inside diameter of 4.56 inches, and an outside diameter of 7.76 inches, features high-efficiency cellulose media, making it a reliable choice for a wide array of heavy-duty diesel engine applications. Its unique sawtooth design compresses to cushion and hold the filter in place, providing a secure seal - even in severe environments. The RadialSeal design allows for fast filter changes. Durable structural support protects filters from damage or collapse in heavy vibration applications or humid conditions. This filter adheres to ISO 5011 standards.