Choose this Hypro Pump Only Kit, which is designed to bolt to a 5.5HP gas engine, to include in your low-pressure spraying system deploying liquid fertilizers and weed control solutions. Built with a Hypro 1538 gas engine-driven centrifugal pump, it comes with a maximum pressure rating of 75 PSI and a flow rate of 110 GPM. Because of this, it's also great for filling nurse tanks, watering seed beds and other agricultural spraying jobs.