CDS-John Blue Company manufactures liquid and anhydrous agricultural products for both applicator and irrigation use. These products include the CDS-John Blue Piston Pumps, Flow Dividers, VisaGage II Flow Monitors, Squeeze Tube Pumps, Centrifugal Pumps and the E-Z Meter Irrigation Pumps. CDS-John Blue Company also distributes a complete line of diaphragm and piston spray pumps, 12-volt pumps, 12-volt controllers and foam markers.