PureFlow AirDog® manufactures and supplies AirDog® Fuel Air Separation Systems and Raptor® high performance lift pumps for diesel pick-up trucks. PureFlow AirDog products are the only true air separation systems on the diesel market today and Raptor fuel pumps offer increased performance with a budget in mind. AirDog and AirDog II-4G products remove all entrained air, water, and particulates down to 2 micron from your diesel fuel. This helps increase fuel mileage, horsepower and torque, all while extending the life of your injection system parts.