A great liquid fertilizer system starts with a John Blue Next Generation Piston Pump (NGP). Our hydraulic pumps offer a lower cost and more compact solution for variable rate piston pump drives and a quick and stable adjustment to application rates—ideal for planter and side-dress applications. Hydraulic motor/PWM manifold kits are available. All John Blue Ag Piston Pumps are designed, engineered, and extensively field-tested to set the standard for liquid metering pumps.

Farmers and producers have counted on John Blue products since 1886 for reliable, dependable, and accurate pumps and systems, and they are guaranteed to do the job.

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