The RYOBI 40V 4 Gallon Cordless Backpack Chemical Sprayer gives you the convenience and comfort to get the job done with no pumping required. 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. The RYOBI 40V 4 Gallon Cordless Backpack Chemical Sprayer is compatible with all RYOBI 40V batteries. This tool is backed by a 5-year warranty. Battery and charger sold separately.