John Blue centrifugal transfer pumps are second to none when moving your hard to handle products quickly and efficiently. These pumps are built to last and made to forgive as well – running them dry will not harm the seal, which allows you peace of mind. Closed Impeller Technology means pump efficiency improves over time as the impeller wears. Pumps are available with gas, electric, or hydraulic power sources. A Two-Year, Unconditional Warranty backs our cast iron centrifugal pumps. Farmers and producers have counted on John Blue products since 1886 for reliable, dependable, and accurate pumps and systems.