Cummins Fleetguard Fleetguard Fuel Filter Cartridge Fleetguard Fuel Filtration Products Deliver Best-In-Class Performance Using Proprietary Stratapore Or Nanonet Media Which Remove And Hold Onto Harmful Contaminants Over The Service Life Of The Filter. Use Of Fleetguard On-Engine Filters Ensures Optimal Fuel System Protection Per Demanding Oem Specifications.