The Craftsman 20V MAX* lithium-ion powered 4 gallon backpack sprayer consists of an ergonomic design with a variable flow setting that optimizes flow rates based on nozzles - providing consistent, repeatable applications. Utilizing the craftsman battery platform, the integrated battery storage compartment ensures the equipment is protected from the elements and liquids during filling and spraying. The 21” poly wand has a professional shut-off with comfort grip, lock and filter that can be operated with heavy-duty work gloves. With a 24’ vertical spray height, this easy cleanable and maintainable sprayer is ideal for applying herbicides, insecticides, fungicides, fertilizers and other water-based chemicals in hard to reach areas. With 4 hours of spray time and up to 50 gallon sprayer volume per charge, and a superior padded shoulder harness for comfort, this sprayer is perfect for all of your lawn and garden applications.