Solo 4-Gallon Professional Piston Backpack Sprayer easily and effectively handles liquid disinfectants, fertilizers, herbicides, pesticides and formulations for tree, shrub and plant protection. The high-performance piston pump allows for increased pressure capabilities. A metal frame provides stability, while the extra-large opening makes filling and cleaning easier. Features a commercial shut-off valve with a lock-on/lock-off feature to minimize user fatigue. Long service and durability ensured by presence of Viton seals in key locations. Left and right-hand operation is possible due to interchangeable pump handle. Extended reach is provided by the 48 In. nylon-reinforced high-pressure hose and 28 In. unbreakable wand. Sprayer has a double filtration system: filter basket and nozzle filter. Four nozzle assortment allows for multiple spray tasks: adjustable, fan spray, hollow cone, and jet stream. TeeJet compatible.