Introducing the Donaldson Extended Life primary air filter, a dependable choice crafted for heavy-duty engine applications. Its high-efficiency cellulose media is designed to deliver consistent performance across a wide spectrum of demanding conditions. The corrosion-resistant, coated steel liners play a crucial role in supporting the media during operation, thereby maximizing airflow for optimized efficiency. Furthermore, the innovative Pleatloc feature ensures uniform pleat spacing, preventing media from bunching and promoting a longer service life. With precise measurements of 23.06 inches in length, 11.07 inches in inside diameter, and 17.58 inches in outside diameter, this filter meets ISO 5011 standards, making it a reliable option for your engine's filtration needs.