4 Gallon, High Pressure Chemical Backpack Applicator, Sprayer Has A Connecting Rod Actuated Piston Pump Capable Of Producing A Wide Pressure Range Up to 90 PSI, Ultraviolet Resistant Tank, Padded Nylon Straps, Heavy Duty Pressure Cylinder, Reversible Pump Lever, Easy Operating Shut Off Valve, Easily & Effectively Handles Disinfectants, Fertilizers, Herbicides, Pest Controls, Etc., For Tree, Shrub & Plant Protection. Includes Carry Handle.