Donaldson Twist&Drain presents the Spin-On Water Separator Fuel filter, ISO 19438 certified, with a 3.02-inch outside diameter and 5.81-inch length. Achieving 3-micron efficiency (99%) through cellulose media, it's designed with precision at M16 x 1.5 thread size for easy installation. Ideal for #1 or #2 Diesel, Kerosene, Biodiesel up to B20, and JP8.