Select this CDS-John Blue DP-291 Diaphragm Pump for your sprayer systems requiring medium to high pressure. Rated with a maximum pressure of 725 PSI and a flow rate of 29.1 GPM, it's a superb performer in assemblies used for deploying liquids in agricultural, commercial and industrial settings. This product replaces the previously sold CDS-John Blue DP-230 Diaphragm Pump.