CDS-John Blue Co.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 and Flow Dividers, 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 and foam markers.With more than 120 years of experience CDS-John Blue Company succeeds in being the leader and pioneer in innovative design for the new era of precision agriculture. Our legacy is proven in our commitment to outstanding design, premium materials and uncompromising craftsmanship plus in our unconditional warranty: Guaranteed to Do the Job.