Elevate your fuel system's performance with Donaldson's Spin-On Secondary Fuel filter, meeting SAE J1858 standards. Boasting a 4.25-inch outside diameter and 10.30-inch length, this filter ensures thorough filtration. The 9-micron rating (99% efficiency) and cellulose media guarantee top-tier protection. With an M30 x 1.5 thread size, installation is a breeze, securing your #1 or #2 Diesel, Kerosene, Biodiesel up to B20, and JP8 fuel quality.