For the best in comfort, durability and performance, we recommend the Field King™. This 4-gallon piston pump sprayer is chemical resistant and suitable for a wide variety of applications including commercial ag/hort/turf pest control, orchard and forestry work. Here are some of the special features of the Field King Deluxe: Washable in-line poly filter keeps shut-off valve and nozzle clear for reliable use. Dual paddle agitator makes mixing automatic...with each stroke of the pump handle, the operator activates the agitator. 80 degree flat fan nozzle for wider spray pattern. Adjustable waist belt and padded shoulder straps and molded lumbar support distribute sprayer weight and provide comfort. Includes brass 24" spray wand with 56" reinforced hose; Viton seals and gaskets; translucent polyethylene tank; and quick-pressurizing piston pump that rapidly achieves operating pressure up to 160 psi. USA made.