This 4 gallon backpack sprayer/spray tank is designed to water, fertilize, control weeds, control pests and apply sealers. The versatile garden sprayer is constructed from durable polyethylene and comes with a convenient shoulder strap and a funnel top for fast filling. Whether working in the yard or remodeling the home, this 4 gallon backpack sprayer/spray tank is the easy, fast way to spray!