The Dual Pump FPV-PD 2-Way Concrete Sprayer is a dual chemical spray applicator for use with highly corrosive chemicals such as those used to remove concrete and for aluminum brightening. This acid-resistant system uses 2 Flojet air-operated, double-diaphragm pumps to draw 2 ready-to-use chemical solutions from static tanks. Each solution is projected through a dedicated hose as a chemical spray, wand and recessed fan nozzle.Dual pumps allow both hoses to spray independently or simultaneously.