Dump the pump and eliminate the need for manual pumping with the Flow-Zone Typhoon 4-Gallon Multi-Use 18V Lithium-Ion Backpack Sprayer (FZSAAK). This conveniently portable backpack sprayer introduces a better way to apply pre-spray, protector and so much more. The durable, 4 gallon polyethylene tank can contain a variety of solutions and solvents to meet a wide variety of project needs. The Cyclone is powered by a quick charge 18V/5.2Ah battery that provides up to 2.5 hours of continuous spraying. It is capable of spraying up to 30 feet and features a dual-speed switch that toggles the PSI output for precision application.