With hydraulic agitation, the Backpack Sprayer easily handles liquid. 4.2 Gallon (16L) capacity made from high-grade polyethene plastic to resist corrosion from solvent. Lightweight and conveniently worn on the operator’s back like a backpack for maximum portability and ease of use 4 interchangeable nozzles for different spray patterns, including fan, conical, dual conical and 4-hole nozzle patterns. Comes with a heavy-duty 5-foot hose and 19-inch stainless steel rod spray rod. FEATURES This sprayer is designed according to the back curve of the human body so that to make users feel more comfortable while working.