The Flow-Zone Cyclone 2.5 Variable Pressure 5-Position Battery Backpack Sprayer (4-Gallon) (FZVAAJ-2.5) is a favorite of the pros, The CYCLONE 4-gallon sprayer has been updated with the 5-setting variable pressure controls. Spray for over two hours on one charge and over 25-feet! The CYCLONE 2.5 provides all-day comfort and can withstand demanding projects. Crafted from selectmaterials that will last through several spraying seasons, this sprayer is a great choice for lawncare or pest control.