Chapin 4-Gallon Backpack Hand Pump Sprayer

4-gallon hands-free sprayer for big jobs. Large pump pressurizes quickly with less pumping. Has an internal 4-position spray valve for expert pressure control from 15 to 60 psi. Has padded carrying straps and an easy operating spray handle with continuous spray feature for fatigue-free operation. Multi-use nozzle tips are included. Has an adjustable cone and fan nozzle. The pump handle is positionable for right or left hand use. Has a 4" wide opening and a poly shut off. For weed control, pest control and fertilizers.