Has a connecting rod actuated diaphragm pump that is capable of producing up to 60 P.S.I. Diaphragm and internal components are made of Viton . Inherent in the diaphragm pump design is its ability to pass small abrasive particles without damage to the pump. The diaphragm pump handles chemicals in wettable powder form as well as liquid formulations. Ultra violet resistant high-strength, 4 gallon polyethylene tank. Reversible handle, adjustable pressure control valve, fiberglass reinforced spraying wand, large opening with strainer for easy filling, and padded shoulder straps. 10.1 lb. dry weight. Sprayer will accommodate bleach.