Donaldson fuel filters are designed to help prevent premature injector and pump wear by delivering cleaner fuel to your engines. Reliable performance pressure relief valve allows fuel to rise slowly. Compatible with existing electronic filter life indicators. Cellulose media effectively meets application efficiency and capacity requirements. Specifications: Outer Diameter 73.7 mm (2.90 inch) Inner Diameter 27.6 mm (1.09 inch) Length 142.8 mm (5.62 inch) Efficiency 99% 40 micron Efficiency Test Std SAE J1985 Style Cartridge Media Type Cellulose Primary Application EUCLID 21029