The Cim-Tek 800HS Type II and Petro Clear Water and Particulate High Flow spin-on filters are larger than standard dispenser filters and have a 1" inlet for high-volume fueling at truck stops and commercial fleet locations. A water absorbing media is added to these filters to remove non-emulsified water along with the particulates from contaminated fuel. These filters are rated for rates up to 40 gallons per minute. The 10 micron is recommended for gasoline. The 30 micron is recommended for diesel fuel.