The AR813-GR-CPC-GCI diaphragm pump is widely used in the commercial, industrial and agricultural sprayer industries. With a flow rate up to 21 gpm and max pressure of 725 psi it is optimal for medium or large-sized sprayers, assisting in the targeted distribution of your liquid product onto desired surfaces for consistent, even coverage every time. This model is equipped with pressure regulator and gear reduction to attach directly to a gas engine.