The RYOBI 40V 4 Gallon Cordless Backpack Chemical Sprayer gives you the convenience and comfort to get the job done with no pumping required. Spray up to 200 gallons per charge and for precise application use the variable dial to adjust to your desired pressure. It is equipped with 4 nozzles: adjustable, flat fan, shower head, and dual, for a variety of applications. With a 4 gallon translucent tank, you are able to easily reference fluid levels and no chemicals will go to waste with its gravity fed design. It is ideal for use with herbicides, insecticides, fungicides, and most other lawn and garden chemicals. There is a comfortable backpack design with padded and adjustable shoulder straps allowing you to comfortably spray around the yard. This kit includes a RYOBI 40V 2Ah lithium-ion battery and 40V charger. The RYOBI 40V 4 Gallon Cordless Backpack Chemical Sprayer, 40V 2Ah battery, and charger are compatible with all RYOBI 40V products. This tool is backed by a 5-year warranty and battery is backed by a 3-year warranty.