Optimize fuel filtration with Donaldson's Secondary Fuel filter, SAE J1985 approved. The Spin-On design, 4.65-inch diameter, and 8.94-inch length, with 16-micron, 99% efficiency cellulose media, and 1 1/16-16 UN thread size, ensures reliable performance for #1 or #2 Diesel, Kerosene, Biodiesel up to B20, and JP8.