The Hypro 4001XL (4001XL-A) Roller Pump is economical, but it provides great performance every time. Designed to be used in many ways for agricultural and industrial purposes, this model efficiently sprays and transfers many types of fluids, including herbicides, insecticides, liquid fertilizers, emulsives and aromatic solvents. This pump is convenient in that it needs no check valves, yet it displaces liquids with low friction and starting torque.